Issue With Input.GetKey and IENumerator in Grabbing Script

So what Im trying to achieve here, is when the player holds down E it continously grabs the item and grabs certain increments per swipe. Now the way I set this up so far, is just to log a string of "Grabbing Item" In this case lets focus on 1 item, a large stack of money. My hope, was when the player is within the colliders of lets say (Money Stack), and if I am holding down E, then every X seconds, the Log should say, "Grabbing Money".

Now it does do this for sure, but its weird.. Lets say we set the EINumerator to yield for about 3 seconds.How its currently playing out, is it waits the 3 seconds but then BOMB! does the log about 20-30 times while im holding down E. If I am to just tap E, it literally does it like 10 times really fast.

Why the heck, is my code playing out this way? My theory is the logic I have for the collider.. I think that every split second my player is within the collider, it runs the IENumerator function multiple times within a second. This is the only thing I can think of. But at the same time, I'm not to sure of the proper approach/architecture I should be taking? Any advice is appreciated, thanks.

Code:

 public class GrabMoneyStack : MonoBehaviour
 {
     // Variables:
     [SerializeField] public int moneyAmt;
     [SerializeField] public float grabSpeed;
 
     public void OnTriggerStay(Collider other) 
     {
         // check if its the player:
         if(other.tag == "Player")
         {
             // Check to see if user HOLDS DOWN the "E" key:
             if(Input.GetKey(KeyCode.E))
             {
                 StartCoroutine(GrabMoney());
             }
         }
     }
     IEnumerator GrabMoney()
     {
         // yield return new WaitForSeconds(Time.deltaTime * grabSpeed);
         yield return new WaitForSeconds(grabSpeed);
         Debug.Log("Grabbed Money!");
     }
 }