(Jan. 27, 2012) -- Sales volumes are much lower in the RV, marine and powersports industries than the auto industry, and there's less consistency in terms of sales and marketing incentives from the manufacturers, "so dealers tend to keep mum on their invoice pricing," Taylor explained. "SeeDealerCost.com is meant to educate and offer more transparency so people feel more comfortable -- and eager -- when making a new or used vehicle purchase."