can't use Vector3.Distance with object at origin(0,0,0)

I am using a lot of Vector3.Distance in my script, but I do not think it is too much that it is causing my current problem - which I think may be unity's fault? but I may just be ignorant on this one. One specific Vector3.Distance involves using a GameObject at the origin point (0,0,0). I know it does not work because I am using the vector3.distance to destroy any 'floor' outside that point of space, and the 'floor' at the origin point is the only one not being Destroyed(which the obvious distance is too far away that it should have been destroyed. I even walked passed it- forming the floors around it again(none were created in it)(Line 70 is where the Vector3.Distance is).

 ![using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 
 public class BuildManager : MonoBehaviour {
 
     public List<GameObject> floorsMade = new List<GameObject>();
     public List<Vector3> floorSpotsAroundPlayer = new List<Vector3>();
     public List<bool> floorBool = new List<bool> ();
     public GameObject player;
     public GameObject floor;
     public Vector3 currentFloor;
     public Vector3 previousFloor;
 
     public bool startGame;
 
     void Start () {
         startGame = false;
         player = GameObject.Find ("Player");
         floorSpotsAroundPlayer.Add (new Vector3 (0, -50, 0));
         floorSpotsAroundPlayer.Add (new Vector3 (30, -50, 0));
         floorSpotsAroundPlayer.Add (new Vector3 (0, -50, 30));
         floorSpotsAroundPlayer.Add (new Vector3 (-30, -50, 0));
         floorSpotsAroundPlayer.Add (new Vector3 (0, -50, -30));
         floorSpotsAroundPlayer.Add (new Vector3 (-30,-50, -30));
         floorSpotsAroundPlayer.Add (new Vector3 (30, -50, 30));
         floorSpotsAroundPlayer.Add (new Vector3 (-30, -50,30));
         floorSpotsAroundPlayer.Add (new Vector3 (30, -50, -30));
         ClearFloorBool ();
     }
         
     void Update(){
         StartGame ();
         CheckFloorChange ();
     }
 
     public void StartGame(){
         if (!startGame) {//CREATES THE BASE 9 SQUARES THAT STARTS THE GAME AND ADDS THEM TO floorsMade
             startGame = true;
             GameObject temp = Instantiate (floor, floorSpotsAroundPlayer [0], Quaternion.identity) as GameObject;
             temp.transform.parent = gameObject.transform;
             floorsMade.Add (temp);
             previousFloor = GameObject.Find ("GameManager").GetComponent<GameManager> ().currentFloor;
         }
     }
 
     public void CheckFloorChange(){
         currentFloor = GameObject.Find ("GameManager").GetComponent<GameManager> ().currentFloor;
         if (currentFloor != previousFloor) {
             previousFloor = currentFloor;
             foreach (GameObject floor in floorsMade) {//FIND FLOORS SPOTS FILLED,FILL THEM WITH TRUE IN floorBool
                 for (int i = 1; i < 9; i++) {
                     Vector3 tempvect = new Vector3 (floor.transform.position.x - currentFloor.x,-50,floor.transform.position.z - currentFloor.z);
                     if (tempvect == floorSpotsAroundPlayer[i]) {
                         floorBool [i - 1] = true;//MINUS ONE BECAUSE SKIPPED ONE IN THE 'FOR' STATEMENT, WHICH IS EQUAL TO CURRENT FLOOR
                     }
                 }
             }
             for (int i = 0; i < 8; i++) {
                 if (!floorBool [i]) {//INSTANTIATE FLOORS IN false SPOTS IN floorBool 
                     //FLOORS ARE 100 HIGH AND NEED -50 FOR Y FOR PROPER PLACEMENT
                     Vector3 tempVect = new Vector3 (currentFloor.x + floorSpotsAroundPlayer [i + 1].x, floorSpotsAroundPlayer [i + 1].y, currentFloor.z + floorSpotsAroundPlayer [i + 1].z);
                     GameObject temp = Instantiate (floor, tempVect, Quaternion.identity) as GameObject;
                     temp.transform.parent = gameObject.transform;
                     floorsMade.Add (temp);
                 }
             }
             ClearFloorBool ();
             for (int i = floorsMade.Count - 1; i > 0; i--) {//DELETE FLOORS THAT ARE TOO FAR AWAY. BETTER EFFECT AND TOO FAR AWAY IS USLESS
                 if (Vector3.Distance (currentFloor,floorsMade[i].transform.position) > 120) {
                     Destroy (floorsMade[i]);
                     floorsMade.RemoveAt (i);
                 }
             }
         }
     }
 
     public void ClearFloorBool(){
         floorBool = new List<bool> ();
         floorBool.Add (false);
         floorBool.Add (false);
         floorBool.Add (false);
         floorBool.Add (false);
         floorBool.Add (false);
         floorBool.Add (false);
         floorBool.Add (false);
         floorBool.Add (false);
     }
 }][1]

(the lone square is at the origin point)

[1]: /storage/temp/63393-capture.png