I got one with my iPad. If you don't like the idea of spending $30 on a power adapter, perhaps spending $500 on an iPad and getting a free adapter would work better, psychologically speaking? :)
Right after the iPad 1 came out in the US, I was in Thailand on vacation and didn't have my cube charger with me. I was hoping I could get a 10W iPad charger at the big electronics mall, looked...and they were $79. While grey-market iPads were actually selling for about $650. (I just charged using my laptop).
Apple chargers are one thing which I like to buy used; especially for magsafe, I haven't found any counterfeits. Being able to have 10 extra chargers around home/office saves a lot of hassle, and when they're $25 it's reasonable to do that.
