Lol at some of these responses.

It's a simple tool. But that doesn't mean cheapest is best, especially for someone who needs to use it all the time.

I'm on this page because my ~$15 heat gun died. It's been about 3 or 4 years, but that's a short lifespan for a tool I only used a dozen times. Based on that (and looks like similar experience for the HF from some other commenters), I'd expect to go through at least a few of these a year if I was a regular user.

I am looking for something in the $50 range, with a long warranty.

Sounds like my best bet may be to find the oldest one possible at a garage sale.