I spend five bucks on... Food, which is something I kind of need to survive.
Also, it's not the price that bothers me, it's the fact that I don't like being forced to pay for a feature, which I'm never going to fully utilize, just so that I can transfer content from an old game to a new one, especially considering the past transfer methods were completely free of charge, and the only money I had to spend was on the games themselves.
I've seen everyone's take on this, here, and I completely understand why Game Freak needs to charge to keep their server up and how five dollars a year isn't a lot, but that's not the point. The cost could be five cents and I still wouldn't like it.