Hi all first post and new to the site. I currently own a deck boat and looking to upgrade to a Bennington. I looked at some 2021 models and also came across a 2018 25RSD. Not sure I need the dinette and bar and have not seen the boat in person. The 2018 has a Yamaha 115 (150 hours on engine). We have younger grandkids that will want to tube but probably not much skiing. My lake is fairly small about 225 acres. Any advice or thoughts on buying used vs new ( SSRX OR LX) and will this be enough power with 6-10 people on it? Is NADA a good source for used boat prices?