That was my idea behind the Bargain Bin Treasures thread. Once hardware is on clearance it often goes for a small fraction of its original price. Then it's unavailable in a blink. I love catching bargains on great stuff that's passé.You're not alone. It's easy to do. version 2 comes out 2-4 months after version 1 so it's easy to not keep up. It gets old really fast...for me anyway.
Never a fashion slave, I still happily use 'stuff' that was cutting edge years ago. And in this league, a year or two is all it takes to make big savings if you can catch them on their way out.