It's all a catch 22 and there's not much logic to it. The basic situation is that vendors don't think the product was wanted at Renderosity since it was removed after going thru clearance, Renderosity's clearance process itself has a couple of major issues (most notably the glitch the fact that items in clearance are going to be less likely to sell in clearance than out of it except during the random $3.50 sales, since they're not eligible for sales and the locked-in clearance discount is lower than the discounts 50-60% discount that most of the same vendor's products frequently get.) and, meanwhile, most of the newer customers don't even know that the older product ever existed, and wouldn't know to ask for it to be brought back AND there a number of products that have been removed not because they weren't selling, but because the PA left the store for other reasons.