OK. Two things:
1. slow down. Nothing is going anywhere and the values are not skyrocketing right now. Some TS purchases are like crab traps: once you get in, you can't get out. You have a tight budget. You'll need to make sure you make good choices....the first time.
2. There are several ways to enjoy the use of timeshares:
- Own it and use it (close to home, easy for short planning and easy for long planning, flexible, no surprises and affordable)
- Own it and trade it (good for short notice, not so good for long-range and school calendars, unpredictable, lots of suspense, more expensive, can go unused due to 'hard to use' factor)
- Rent it for the maintenance fee (cheaper than owning, you know what you get, easier to plan ??, lots of choices, some suspense, flexible, long/short planning etc...) Since you've said 'Thailand' a number of times, I'll point out that tourism to Thai has a black-eye right now...rentals should be plentiful and dirt-cheap for quite a while. If you look, you could probably rent anything (Marriott included) for fire-sale prices. Many are asking how to refund reservations due to the terror/political climate there.
My suggestion to you was Worldmark. Easy to own (near home), affordable and flexible etc... Easy to trade in any exchange and trades well--for any destination that can be found on the exchanges. Can be rented, swapped or gifted/guested. Covers all the points above. NOT a trap, easy to buy, easy to sell, easy to rent unused points.
You might, however, consider just renting some units from the exchanges previously mentioned:: SFX, TPI, DAE, Platinum. These companies (all, I think) allow anyone to join and not only exchange properties, but also rent unfilled weeks. Some have membership fees, some do not. Generally, if you join the preferred membership, you get more value for your money. Not too expensive to join them--especially when they have membership drives. So, you could easily rent a unit in Thailand for cash with no up-front outlay. Later, if you get a timeshare (WM or ???) you could exchange the timeshare for one in (Thailand) your choice of destinations and, depending on the quality of your exchange, possibly get 2 for 1 (2 weeks) or even 3 for 1 exchange time--especially to some of the less-demanded resorts across the pacific rim and Thailand. This type of strategy would take time, planning, research and practice. Not something you can buy, but something you learn.
I've included the links to the exchanges below...you might take a look and see if there is something you could rent to get the 'mom needs a vacation' bug out of your system now, today. Then, you can take your time for future vaca. I will say, these purchase things take time (month or two at least) and that can be frustrating when you're trying to book next month or next year--and it's rapidly approaching. Finally, many of the secondary exchanges (like SFX etc...) work on a 'request' system. You call them, tell them what you want and when and they'll try to find it for you. Many report success with this system for lesser traded properties. You might just call them and chat.
SFX
http://www.sfxresorts.com/resort-directory/pacific-rim/thailand/
TPI
http://www.tradingplaces.com/exchange/about-tpi-exchange
DAE
http://www.daelive.com/search/bonusrental.aspx
Plat
https://booking.platinuminterchange.com/crs/Hotweeks.aspx?Step=1