I have 50 or 60 clamps of various sizes, and have used every single one of them on a single project. You can never have too many.. I have seen woodshops with 100 pipe clamps lined up along a wall, and while it seems like overkill, it doesn't take much to use them all. I want more of the good parallel clamps, I have 2 5 footers and 2 4 footers now (they are usually $40-50 each). I have about a dozen each of 6", 12", 24", and 36" bar clamps, about a dozen pipe clamps mostly in 4 and 5 foot lengths, and then a half dozen 90" clamps, and another half dozen random c-clamps. I also have a pair of those plastic hand clamps that are good for delicate jobs or holding something in place while cutting, and a pair of 12" quick clamps that I use for EVERYTHING.. always a good extra set of "hands" to hold things. I also have about a dozen really cheap plastic spring clamps that are nice for just holding something somewhere or for fine detail work. If I had my way, I would have another dozen 5 foot parallel clamps, another dozen 3 foot parallel clamps, and about 30 more pipe clamps from 4-6 foot. The pipe is more expensive than the clamp ends, but they are life savers on gluing up panels. But I haven't done enough woodworking in the last 10 years to justify the expense. I sold off my big tools, like my 24" open ended drum sander and my 18" bandsaw, and never even replaced them, which I should, just with smaller versions.