My general guide was to go to rvtrader and find what the lowest price in the country was. In my case my local dealer was tied with two others for the lowest price. I then found a site that claimed to list dealer invoice for the big manufacturers, according to that the price offered was 10% above invoice which seems reasonable given what the dealers costs are to carry a unit. My final out the door price was about $1,5000 over the list price plus tax but that included about $6-700 in work and equipment to my tow vehicle so really the miscellaneous fees were in the $8-900 range.