As a Linux user what kind of software are you willing to pay for?

Really well made software for tasks I care about, that has better features, better stability, and/or better performace. Linux programs I've bought: VMware Workstation, Nero Linux, John the Ripper Pro, and Steamline Theme for Wordpress. I couldn't find a free them I liked better. Also I bought a few Loki Linux games years ago. Quake and Heretic 2 come to mind. Also Bought the Quake 4 CD for Windows, but download the Linux install to make run natively on Linux. Same with Half-Life 2.