To be obsessively complete, there's a few missing as Cory started to list. I've never seen an old-style auto inject Performa 475. I have a newer style manual Performa and LC 475 though. Despite this I've always kind of wanted a Quadra 605. I suppose just for the fact that it says Quadra on the front. That and I have a 610, 650, 700 and 950 at least. I swear there was a 660av but I can't find it. All I would need is a 605, 630 and 8XX to have one of each Quadra case. Not that this is an actual goal at the moment.
Here's the list of the ones besides the LC, LC II, LC III, and Quadra 605. Add to it if I left something out...
Manual Inject LC III
LC III+
LC 475
Performa 400
Performa 405
Performa 410
Performa 430
Performa 450
Performa 460
Performa 466
Performa 467
Performa 475
Performa 476
Of course this was back when Apple thought having slightly different software or specs, or who they were selling it to deserved a different model name. The polar opposite of today where there have been more computers simply named iMac than I care to try to start listing... 14 years. One name. Not that I'm complaining...it makes it simple when looking at the current offerings. When it comes time to talk about old computers we're forced to start saying things like iMac G5 20" iSight or iMac 27" Late-2009. Still simpler than being an expert on a model of car that's been around for a few decades or more and memorizing each model year's changes along with the options and such.
Anyway, back on topic...it would be really cool to see one of every Pizza Box Mac lined up. A geeky kind of cool.