We chose to build a smaller table after using the trailer for 50+ nights. We don't use the table at all most of the time, and when we do we don't need a table that large. We prefer a "lounge" config the way others have done it.
So the new tabletop is just the right size for our lounge (we ordered a cushion from CushionSource, but it's not here yet). I did make a filler board for when (if) we want to use the dinette for a bed.
I fully understand why others prefer a full-size table, and, yes, that would work fine with this setup.
One thing I haven't done yet is install a mechanism to lock the table's side-to-side motion. It's on my list ....