If you've got one vehicle where you flip wheel sets, I would agree it probably doesn't make sense to DIY cost or convenience wise. With two vehicles (or I guess if you change more often for some reason) it has saved me time to go that route myself.Hmm. While I'm not exactly handy, I've certainly changed tires (back when cars had spares). I don't remember it as being much fun, though. Moreover, I did the research and it looks like I'd have to buy a bunch of tools that I'd only use twice a year. So, having more more money than time, I think I'll just throw money at the problem.