If you think $399 to $2,500 is too high a price to pay to have your genes scanned, you can try to be one of TruGenetics' first 10,000 customers. Those lucky few will receive a free genetic profile of more than 500,000 genetic markers for 200 diseases and conditions. Genomeboy's Misha Angrist wonders about the company's business model. "Is free genotyping enough to cannibalize market share from the Big Three?