Full body workouts are great, you've got me wanting to buy a resistance band!
You should. They are great for traveling; maybe not for everyday home exercises!
I used to be a diehard fan of gym equipment. I used to buy any good item I see at the store. My wife did a garage sale once and her spot was filled with them. The only thing I never got rid of, which my wife uses from time to time, is the resistance band.