Yeah golf equipment is crazy expensive if you want to stay up with technology. I've never been that guy who gets a new driver every year or even more. Hence the 15+ year old Mizuno's. I'm trying to change my old fashioned ways though. I had a Super Stroke grip put on a putter the other day. That's a little change
Every few years I will purchase a Golf Instruction DVD though. I just bought Butch Harmon's 'About Golf' and I also picked up the Joey D Golf Fitness work out DVD. I'm liking the Joey D video and some of the drills/exercises. Working on my turn, trying to add some width to my swing and some strength for balance.
The Butch Harmon video is O.k. with good fundamentals and then he has some of his pupils he's teaching. Pros as well as some Ams.
Fun stuff!