I would encourage you to spend some time at TUG:
www.tug2.net
Here are some opening thoughts for you:
If you want some all-purpose great traders that are inexpensive and cheap, the TUG favorites vary whether you want access to II or RCI inventory. For II, you need to own a high quality resort during red time. For RCI, resort quality is much less important than the demand for the area. For RCI, I would recommend buying a peak summer (Weeks 26-32) beach week or a winter ski week. Summer Cape Cod weeks are the current favorite among TUGgers.
For example, my timeshare portfolio currently includes DVC, summer floating Aquamarine Villas in Southern California (summer beach week that trades great in RCI), Week 26 Lawrence Welk Resort in Escondido, CA (summer high demand, high quality that trades great in both RCI and II), Foxrun resort in North Carolina (very inexpensive but fairly high quality for trading within II), and some Royal Resorts weeks (more for personal use but I occasionally trade them). I also have some South Africa weeks, but those are strictly for trading in RCI during low demand periods. All of the traders listed above cost me less than $3500 each. The South Africa weeks cost $400.
I am a college professor and I travel a lot with my family. The best strategy is to ask the tough questions that Dean has posed to you and figure out a strategy for your travel. Dean and I tend to agree that there are very few like-for-like trade opportunities within DVC because DVC is VERY high quality and very expensive. You are better off using it and renting it when you are not.
One very fundamental question, though, is whether you need to own anything. Timeshare rentals are very inexpensive, and you need to analyze if it is worth it to own anything that you will not personally use each year. If you visit TUG, you will see a lot of discussion about the merits of owning v. renting. There are many great opportunities for rentals. Many of these are last-second opportunities. See
http://www.skyauction.com/ as just one example.
Please note, though, that you cannot get every resort via exchange. DVC is notoriously difficult to get, as is some of the more prized Marriotts (Grande Ocean on Hilton Head, some of the Hawaii locations). But if you are fairly flexible, you can get great exchanges at great resorts with a variety of methods.
Finally, consider joining TUG as you can get great timeshare reviews and other helpful information.
Hope this helps!
