no matter 'what' dealer you buy from, ask them for their out-the-door cash price, and hold them to it - it really doesn't matter about all the other 'costs' they may include, if you are comparing it to any other dealer you might also get a price from - the price you write the check for is the final word.
You will always have costs that are outside the bounds and control of the dealer, such as sales tax for your country/county/province, tag fees, etc., but that is the same no matter where you buy it.
Gander RV is just another rv dealer, no different - they sell RVs. If you don't like the price, walk. If you do, get the bottom dollar check-writing price and hand them the check.
'14 Palazzo 33.3 bunkhouse 34' diesel
KingTailgater2 Dish HD, 100w/5a SOLAR, BlueOx
100,000+mi since '14 - US, Alaska, Canada.... formerly Georgia, then NorthCarolina, now Alabama : )