Years ago I got a tommy Armour ZAAP putter, my first big ticket club purchase. At the time I couldn't decide between offset or non offset models. Always wondered how I would have done with the model I didn't select. Picked it up for 10 bucks on ebay. While it may not have been an economic steal, I most certainly valued the putter a lot more than the 10 bucks I paid for it.
Still use both models of the putter. They have a place in my ptter rotation...ususally right after a missed putt for double bogey.
I agree with other posters around "deals" on new equipment. Too many crooks out there for me to be comfortable the stuff is genuine.