I thought the same thing about a cheap camera that Woot.com had one day. It was about the same price. In Hi-Def mode it will record about 15 minutes before running out of space. It has 2GB built in memory. The lower res is not watchable, and it didn't last any longer. Didn't really understand that. Also the high res quality is ok, but it's nothing like what I see from Go-Pros. I need to order a SD card as the one I have will take those as well. My guess is go ahead and get one cause the built in memory is probably not enough to do anything with. I have looked and 32G is about $30.00 on Newegg.
2013 Vision Sunset Red - Stage 1 exhaust, VictoryHID Cyclops
2004 Kingpin - Traded