Why Using Dim As INTEGER

I received a reply somewhere



Dim i As Integer

is better used as

Dim i As Long.

Integers get cast to long in the OS, and then back to Integers when passed nback, so it is a unnecessary overhead.

but didn't want to hi-jack that thread

QUESTION:
why would we still use "integer" then?

I tested with


Sub testInteger()
Dim starttime As Double

starttime = Timer

Dim i As Integer
For i = 1 To 32766
Dim j As Integer
For j = 1 To 32766
Next j
Next i