Do you *really* need one?

I'm umming and arring about getting one. We had decided at first not to get one, as a lot of people we have spoken to said they wasted their money buying one as they used them a few times then didnt bother with it.

But now I'm uncertain. I dont need one for the space of putting changing things, we have built in robes in bubs room and will also have a chest of drawers I can put things in.

We have a change mat, should we just stick with that?
Did you find having a change table worth it?

TIA