When you buy a see-through top and it comes with a cami and the straps of the cami run through a built-in loop (to keep the cami in the right position), do you usually keep the cami "as is" or do you remove the cami and either replace it with another one or wear the original cami unattached to the top?

Yay = I KEEP the original cami exactly "as is"
Nay = I either REPLACE the shell with another one or wear it unattached to the top