We have a Tube Shark out in the shop out back (nice machine no distorted/collapsed tubes) but the dies are a few hundred bucks a piece. Be prepared to spend some $ to get a decent assortment of dies. But heck, now you'll be able to build your own stuff and save money in the long run too. Find a good deal and go for it.
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Oh yeah. You might be able to put a couple bucks in your pocket building stuff for your buddies too.