To me the three most important things to consider with RCI Points are:
1. your home resort and home group matters - because - you get a 303 day or less booking window at all points resorts (good), but you get 304-334 days out at your home group (better) and you get 335-364 days out at your home resort (best).
For example we have Meadow Lake for a home resort where we like to go often, so I can book late June 2013
now long before any non owners can. I can also often get a weekend there at the last minute.
I also have Grandview as a home resort (I have 5 home resorts) so I am grouped with all the Dailymanagement group and can get reservations 304-334 days out - before any other RCI Points members can (except the home resort owners).
Oh, and when you book into your home resort within the owners ARP you will only need to pay between zero and $40 bucks for a reservation! Cheap, cheap, cheap.
2.
Don't get too many points - I have 213K points every year and would actually like to have fewer (maybe 140K) - such is life.
Go
here (post #3) to learn how to see how many points you'll need to do what you want to do. You can always rent more points to fill out a vacation - but having extra can be an issue to use before they expire (but not as bad as a week you can't use IMO).
3. When you buy don't overpay: A real smokin' solid deal is less than a penny per point in MF's costs along with closing under $300 and this years points thrown in for for free. A resonable deal would be points @ a penny to 1.5 cents each in MF's along with $500 in closing and no free points IF it's at a resort you want for a home resort.
3a. A red week gives you more points per MF (generally) than a white or blue week.
I own a Red week 1bed Triennial at Grandview for which I get 16,337 points every year for $113 MF each year - and I'll never set foot on the Grandview Grounds, I use the points to go elsewhere. I bought it for $52. (plus 300 closing) on eBay - I'm happy with that.