I've owned a ton of torches. Yes, they eventually clog/break. However, I'm the kind of nerdy guy that takes them apart and either completely screws them up, or fixes them. Most of them are pretty simple once you break them up -- especially the battery operated cheapies.
If you wanna go cheap,
http://www.dealextreme.com/details.dx/sku.1368
That by far is the best deal for cheapies, IMO. They are stupidly hot, stupidly over the top with the 3 torches, and they have ridiculous flashy lights. But, if you take it apart, its a quick snip of 2 wires to disable the lights without ruining the firing mechanism. In my experience with them, they last a pretty decent while, and they won't break the bank -- YMMV. Order four for $20 and you'll be covered for a long while. Use premium butane on the refill though, they clog somewhat easily, but, again, taking these apart and unclogging them is simple.
If you wanna get one for several years, go Xikar or Blazer PB-207. The PB-207 just keeps going (USE PREMIUM BUTANE). I've had mine for YEARS. The Xikar I have no personal experience with-- but it's a Xikar. Xikar = Quality + Lifetime Warranty, you can't go wrong there.
I recently had a Colibri bite the dust. F you Colibri.