I've said it before, and I'll say it again. If you can't find more than one use for a part, you're not Legoing properly. This excludes POOP figures (like good ol' BURPman).
If you think that specialized parts can't be used as anything else, then take a look through this guy's photostream.
I personally enjoy finding alternate uses for specialized parts, and challenge myself every time I get a new one in a set. It really helps stimulate my builder's brain. I recently used a ray gun piece for a robotic claw, made a flagpole out of a steering wheel, rod, flag and microphone, and I frequently use revolvers as angled joints. I just acquired two of those giant plastic olive green wheels from a Chima set, so I'll see what I can do with them.
The only way these parts limit creativity is through lack of effort. It takes a lot more creativity to make a coat rack out of guns that to pile up some 1x1 bricks and say it's a coat rack.
Agreed; my thoughts exactly. I think Lego walks the line pretty well where as MegaTurd fails. By that I mean if you look at all the WoW sets a lot of that stuff is very proprietary; what really limits the uses are lack of studs or other connection points. Then look at a new Lego line like the Hobbit. So much more is re-usable in many different ways.
I personally don't mind the POOP. That BURPman is awesome; I'd totally use him for several things on a Pathfinder game table or BrikWar! The lack of connection points is disappointing but I'd still use him as a mountain giant, a swamp troll, or a poop elemental! Goblinking is epic; don't hate