This is the part I don't like about HGVC. Not only do you need to own at a prime resort and not an affiliate resort, you need to own a great unit in a great season to maximize trading power..... I like a system that is pure points, no owning a specific unit in a specific season and having to figure out if it's a HGVC developed resort or an affiliate.
Or like worldmark and Wyndham where you need to make sure you have enough points and house keeping points or you have to pay an extra fee.... And trading inside the system has an extra fee as well.....
I've only owned Welk and not for very long compared to most people on here. I've been reading up on as much as I can in the exciting and crazy timeshare world and it seems I got very lucky with my first vacation ownership. I have X amount of points, I have one annual maintenance fee ( no club fee, no trading fee, no guest certificate fee, no short stay fee, no day use fee, no parking fee). While I don't have enough points to stay in a 2BR at Northstar during the winter, I can do 5 midweek nights there. Or stay in a 2BR in Hawaii through the Welk collections affiliated resorts. Less than 20 total resorts in the affiliation now but Welk trades very well with but II and RCI.
Just make sure you do as much research as possible, almost everyone here is here to help each other and learn themselves.