I am in the same boat you are! I bred my spider to my normal and now I'm wondering what I'm going to be selling the babies for. (And I will also be keeping a female spider if I get one).
Thing is, I don't really know what spiders are going for these days. I know its not much. When I bought my spider male, he was $300. Now, the prices are a lot lower. While at a show I saw a spider male for as low as $150. I might be selling my male spiders for $200 and my females for $250, but we'll see when others post if those are fair prices.