In my opinion... timesharing isn't an investment. I wouldn't expect it to save you money because you can always find cheaper deals out there. Timesharing is a lifestyle for us. We haven't step foot in a hotel for week long vacations in over 10 years. We enjoy timesharing with all the amenties it has to offer. Recently, we spent 3 nights in hotel to extend out WDW vacation and it was hard dealing with one bathroom & one TV and no washer/dryer. We are definitely spoiled now. I look at timesharing as prepaying for your vacations. When our 1st born came along, we would dream or talk about planning a trip and then, by time we finally sat down to organize the trip either the airfare would be too expensive, or the rooms would all be booked, etc.. It just never worked out. So, now, 10 years later we go on at least 4 week long trips together. We are always going to new and exciting places. As a family it is great to reconnect on vacation without all the other things going on in life like work, school, activities, afterschool sports, PTA meetings, volunteer meetings, etc... We just enjoy our lives so much more because of timesharing.
It is not an investment like owning a cabin in the mountains or beach house, etc...