I have the Casio FC-100 and love it, paid 299 shipped with a 8gb memory card (must be class 6 card) from Amazon.
Here is a recent video if you want to see quality. Arizona is just starting up for real practice time (I go from 2 times a week to 5 times).
I paid way more for the Fc 20 or whatever last year. Dang. That new smaller cheaper casio takes a really nice slo mo video. Bet it doesnt go through batteries like mine does either. It'll fit in your pocket too. How many frames per second were those swings shot at? I never use anything faster than about 280 fps on mine, no need to for golf anyways. There is your affordable Casio gents.
Being from the great white north, I can attest to the value of indoor winter practice. It can take you to a new level, no doubt about it, but you need to know what to work on! And so I highly recommend a winter trip to Atlanta to see Yoda, Luke and Jeff. Its a lot of fun down there too! That reminds me, I'd better start a new pickle jar for my trip or trips down there this year. Get ready guys, Ill be leaving on that "midnight train to Georgia."