You are not being paranoid. You will almost certainly be invited to an "owner update" which is not an owner update, but a sales pitch. Wyndham has recently changed from the 2.5 hour one on one grind to more of a team approach. They do a pitch with a group - sometimes with a little entertainment thrown in - before breaking into individual one on one groups where they dissect your ownership and help you understand the flaws with it and the clear and obvious remedy (buy more points).
My recommendation - vacation time is MORE valuable than any trinket or gift card they offer. Usually the invitation occurs when you are shuttled over to get your parking pass and/or discount books.
I just got back from a trip to Tennessee - we went to Wyndham Smoky Mountains for 3 nights, then Great Smokies Lodge for 4 (well, only stayed 3 of the 4 nights, but that's another story). While at Smoky Mountains, we saw a group of "prospects" in the grinder the day we checked out - which would probably have been the first day of a week stay for most of the "marks" - and it was a group show, and they were bringing some birds in with a couple of guides from one of the local attractions in the area for entertainment. We got a private show from them ahead of time without paying the price of listening to sales blather for an hour and a half.
My advice - just say no. As often as necessary to get the message across.