Why are my keys being registered multiple times?

So I've been working on a multiple-camera system. 1 = Main Camera 2 = First Person 3 = Third Person When I press a key, the console is reporting my Log as pressing key(s) (each key I press) 4 times.

I've been able to get this camera switch to work two times (I've had to make this game three times due to losing my computers and sending them in for repairs). For some reason it does not want to cooperate this time.

 using UnityEngine;
 using System.Collections;
 
 public class CameraController : MonoBehaviour 
 {
     public Camera MainCamera; // Freeform camera (Panable around the character)
     public Camera FirstPerson; // First Person Perspective
     public Camera ThirdPerson; // Third Person Camera (Over the shoulder)
 
     public GameObject player; // Player reference object
 
     private Vector3 offset; // Offset Vector for distance from the player
 
     // Use this for initialization
     void Start () 
     {
         // Camera default settings
         #region
 
         MainCamera = GetComponent<Camera>();
         FirstPerson = GetComponent<Camera>();
         ThirdPerson = GetComponent<Camera>();
 
         MainCamera.enabled = true;
         FirstPerson.enabled = false;
         ThirdPerson.enabled = false;
 
         #endregion
 
         // Offset is equal to the transform position minus the player's transform position
         offset = transform.position - player.transform.position;
     }
     
     // Update is called once per frame
     void Update () 
     {
 
         // Camera Follows the Player
         #region
 
         // Camera will transform its position relative to the player's position and the offset
         transform.position = player.transform.position + offset;
 
         #endregion
 
         // Main Camera (Freelow)
 
         if (Input.GetKey(KeyCode.Alpha1)) // Press of the 1 key
         {
             Debug.Log( "Main Camera Enabled, 1 Key pressed." );
             MainCamera.enabled = MainCamera.enabled;
             FirstPerson.enabled = !FirstPerson.enabled;
             ThirdPerson.enabled = !ThirdPerson.enabled;
         }
 
         // First Person Camera
 
         if (Input.GetKey(KeyCode.Alpha2)) 
         {
             Debug.Log( "First Person Camera Enabled, 2 Key pressed." );
             FirstPerson.enabled = FirstPerson.enabled;
             MainCamera.enabled = !MainCamera.enabled;
             ThirdPerson.enabled = !ThirdPerson.enabled;
         }
 
         // Third Person Camera
 
         if (Input.GetKey(KeyCode.Alpha3))
         {
             Debug.Log( " Third Person Camera Enabled, 3 key pressed." );
             ThirdPerson.enabled = ThirdPerson.enabled; // Enable the Third Person Camera
             MainCamera.enabled = !MainCamera.enabled; // Disable the Main Camera
             FirstPerson.enabled = !FirstPerson.enabled; // Disable the First Person Camera
         }
 
     }
 }

I thought that maybe the regions of code I had these stored in were affecting them but that doesn't seem to be the case. I've tried making these cameras change to simple false instead of !Camera.enabled (toggled) so see if there's a difference and it just makes it so no full screen camera is active.

Thanks in advance. This is driving me nuts! If there's an easier or 'better' way to do this I'd love to know.