I've never bought titanium pots, out of frugality, but I had been thinking about it recently. However, the employee at REI told me that titanium transfers heat more poorly than aluminum, so you end up taking longer to reach a boil and use more fuel than with aluminum. To me this seems like a deal-breaker, especially since aluminum recently doesn't seem much heavier. Anyone else ever heard this?
By the way, I do have one titanium pot which I found left behind at a trailhead. Don't know the brand, but it has the INCREDIBLY annoying problem that when it gets hot, it wants to slide like ice right off my stove if it is at all unlevel. Ridiculous and useless!