[Kputz]

And some get tired of them too. I've one for sale, if you're a serious buyer. I put less than 50 miles on the thing the entire summer.
When I got into this game everyone built their own, and the fraternity was amongst the wrench turning crowd, more like hot rods than a Lexus. Now, I'd be willing to bet the rollers are more popular than the kits, and getting more so every day. Nothing wrong with that, but it simply attracts a different crowd. I decided that if I had to work on a car, I'd rather drive the thing in real competition, and there is only so much garage space and time.
The more that are sold, the less popular they'll become too. This is largely an ego driven game, witness the SA "real/not real" endless silly debate. When there's one on every block, the number of people willing to put this much discretionary income into owning one will decline sharply. And when you pull into the waxer show and people yawn, you'll lose a lot of your entheusiasum too.
It happens. It's not some vast conspicarcy, it's just called moving on for some.