Welcome...I'm going to jump in here with my opinion too.
On the flip side of the coin, if you have a "specific" loop that you prefer to stay on you may have to pay the Premium rate. For instance, my favorite pet loop is loop 800, so I have to pay the Premuim rate to stay there. Even though my 5th wheel isn't that big nor does it have any slide out's and the extra conceret site isn't a selling point for me either, but the loop itself is. I'd say go for the preferred rate the first time you come and check out the sites and loops once your here to see which you'd prefer for your next trip. Unless you have a very large vehicle with slide outs and an awning etc. you'll fit just fine at a preferred loop, so save your $$$.
PS
Their is a thread somewhere on this board that lists which loops are preferred and Premium.