I'm a very, very broke college student, so about half of my current collection was for free. However, on special occasions and whenever I see something really cool that my boyfriend would love (I use him as an excuse to impulse buy), I do spend money for a treat or two of my own. The most expensive things I've bought for myself/us were two glass wands, both of which are, to my chagrin, not featured on EF. We also buy our own condoms and batteries, of course. I also buy a lot of massage oils and, at a sex toy party, spent around $150 on creams and numbing gel (before I knew it was bad), massage lotion, and jelly toys.
I hope I have an awesome paying job in a few years--gotta support my sex toy habit!