I collected statues, mostly Bowen, when Akuma was first available, but I wasn't on Sideshow's email list.
The first I knew about Shin Akuma was in-hand pictures on this forum. I thought, wow, I need one of those and went to SS's website. They were sold out but I got on the waitlist and was lucky enough to be offered a damaged box Shin Akuma (at a reduced price) via email and jumped at the chance. Luckily his beads were in a baggie and the paint was perfect.
The only Street Fighter PF I've had to pay over retail for was regular Akuma, only because I was late to the game.
I think the folks who are paying over retail nowadays didn't know about the line or didn't have the funds at the time. Still others may have stayed on the sidelines but are jumping on board now the prices on so many of the early statues are skyrocketing in price. Everyone wants the cool grails from this line and other (mostly SS) offerings.
I'll bet Jerry wishes he had a bunch more APs of the early statues. I know I do!