To be sure, Flyin O'Brian:
I have two processors in my studio and each one is unique in its own way. I have an Alesis Midi-verb and an Ensonique DP-4. The DP-4 is a monster machine that has all kinds of stuff/rooms and special effects. The Alesis is pretty straight forward and it is not too hard to program if you like to tamper with the reverb algorithms/settings.
Most of us find two/three favorite reverb rooms and use them accordingly: voice, our voices, keyboards, etc. But, it is still nice to get into the box and tweak it once in a while and program a special reverb for a client/vocalist/friend/enemy etc.
Price does mean something with reverb boxes in some cases. Best to hear the box or rent the box to see if it fits your particular needs.
Keep twiddling the dials,
Green Hornet