I got mine for $100 about two years ago. They're now $150. Still seems like a pretty reasonable kind and amount of support, given what LJ does for many of us. I've easily gotten $150 worth of value out of mine (so I buy more paid time for friends from time to time - it seems like another good way to support them).
In other randomness: of *course* I'm invested in screwing stuff up in my life. I do all my best self-work when I'm trying to fix huge immediate problems. To quote that sage so near and dear to my heart, Peter Beagle, "fear and hunger have kept me young." Why am I the last one to notice these things? This means I need to find some way to continue my improvement when things aren't awful in my life. I wonder what one of those would look like. This latter note is brought to you by the fact that I've apparently lost twenty pounds semi-recently. The things you find out when you weigh yourself for the first time in the better part of a year.