I like my paid account. I find it's worth the money, not just for the extra userpics, polls, and whatnot, but also for the ability to *not* be harrassed by ads in other people's journals.

Remember that with the plus account, you're not just selling *your* eyeballs, but those of everyone (without a paid account) who looks at your journal as well. So if you enjoy making your friends suffer, go for it. ;)