It's been two years since our last visit, but they would give a big discount for the tubes if you went to the sales presentation. We said no. We weren't bothered for the rest of the week, or was it because we disconnected the phones? I'm not in the market for a new timeshare, so I just tell them we have a full schedule and no time for a sales presentation. As for the Walmart tubes, they don't allow any outside tubes in the lazy river, I guess you could try, people did when we were there, but when they were seen, they were told to remove the non resort tubes.
Lastly, if you are interested in Walmart, just make a right out of the resort, go to hiway 27, exit right and Walmart will be on the right less then a 1/4 mile on hiway 27 behind the roadside businesses and next to Lowes.