Sometime ago I got a used "Skycaddie" from a golfing buddy of mine. It only cost me a box of Pro V1x's. Not a bad deal considering how much they cost. I have used it several times on courses around where I live. My subscription ran out so I renewed with the US plan (a whole lot more courses than I'll play). I plan to play several courses in Vegas next week and then a couple in New Mexico in August. It's cost? $49 for a subscription for the year.
I have to say that I think it is ideal for the average player (me) and will help the yardage part of the game immensely! The Wall Street Journal ran an article in today's Weekend Journal section
Use a friend's Skycaddie before you run out a buy one!