GrumpyGregry
Here for rides.
What does it actually do for that money? If all you need is to allow people to self-register, Google Forms is free and will save to a Google Docs spreadsheet.
Google forms is a valid option.
As for Wild Apricot. Quite a bit. Take a look at http://www.ssrfur.com/ as an example, all built on their platform. Not that impressive unless you know it was built and is administered by someone with zero technical knowledge or website skills. The event stuff is quite slick too, esp for 'normal' peeps who don't do this stuff for a living. More info http://www.wildapricot.com/pricing.aspx
I've no connection with them, other than as a user.