Over the years there has been a lot of change - some ponies which were harder to find are much easier to track down (Anchors Away), some ponies which are still hard to find have dropped dramatically in value (Beach Belle/Caribbean Delight). However ponies like limited editions (Trolly, Bay Breeze, etc) are certainly still both hard to find and pricey. The SLHs and Birthflower (not the Birthstone) ponies however certainly also remain on the slightly higher priced and sought after side. You also get some popular and higher priced regular releases like Diva Tink, Winter Minty and even Port o Bella.