Either you sell at current market value, or you hold on long enough to where your profit is dwarfed by your investment.
Unfortunately that is business. And, if you hold back these animals until you feel the "price is right" you will have adults that now are too expensive (by your pricing thoughts) to legitamently sell.
I helped work a booth at a local show this past weekend, and we sold a Pin for $35, pastel females for $40, spiders for $40, and had sugar males marked at $175. No one even gave the sugars a second glance, let alone a first. Pastel sugar male for $500 and a Mojave x Lesser BEL MARKED for $500, those got looks but no one even made an offer on it.
It sucks, it's disheartening, but you sell at these prices now and you hope that other people start getting out.