Really awesome. What Im dying to know though is some stats on the profitability. On average what sort of groupings of parts do you get from the bulk Lego and wh

Really awesome. What Im dying to know though is some stats on the profitability. On average what sort of groupings of parts do you get from the bulk Lego and what do they sell for vs what you paid for them? Is there a variance is the quality of the bulk lots? I presume once you've sorted out the rare Lego you could just resell the common stuff as another bulk lot, but if everyone does that how do you avoid buying stuff that has already had the rare pieces filtered out?