I am not sure what I am missing, but the set had an MSRP of $160. It's now been off SAH for apx 6 months. I am seeing an average sold price on Ebay apx 280-290ish. I am not saying those are earth shattering returns, but after 6 months and with so many people unloading them NOW... I am even more confident this will be a long term winner. I guess I am just not sure what some folks are expecting in terms of growth/speed. I think if you talk about a set's growth before it goes through at least one holiday shopping season, you're wasting your time and energy. Patience. This is also the worst time to sell of the year, so take current prices with a grain of salt. If one year from now this set is still selling for 280ish, I will A: Be shocked, and B: Be concerned. I just don't see it going down that way. All that being said, I think with the stark uptick in LEGO investors in just the last year or two, and the state of the economy as well as the increased products LEGO has released, people still have some unrealistic expectations of returns. Personally, I think this is a GOOD thing for long term investors, as I am hoping to see some of the latecomers give up quickly and also that it will discourage further new folks. I'd kind of compare it to Diagon Alley - A set that MSRPed for $150, and now about 2 years later is selling for about $320, with a peak during the holidays of $350 ish. I think Arkham will be similar, maybe with a top end of $400 ish after two years off the shelf. As far as I am concerned those are fantastic numbers, you'd still be doubling your money (or close to it) if you paid MSRP and got no promos/deals.