I seem to be earning some serious weapons (or enough to help me kill everything so far) so I'm never really tempted/interesed in buying any from the man - usually really expensive, or nothing that jumps out as exceptional anyway.

I'm level 33 so far, and I'm happy with what I've got up until now.

Have you bought any weapons? And if so why? Are there some weapons that you can only buy or, if I obliterate everything in front of me I can get my greedy hands on all the goodies out there?