I would suggest the Entertainment Center... a saw, some creativity, some paint, and a little extra wood and you have a "Joe Base". I did the same thing to my old entertainment center, but then the basement flooded and the Joe base kinda sank (it fell over and rotted) luckily all the Joes made it out alive.

Point is... use what you have. Cut or saw holes in the unit so they can access different levels, put in some stairs or elevators, and the some dio touch-ups and presto... you have a display base/dio and it only costs maybe the same as a table.