Personally, I wouldn't want to go over 200 points for a resale contract, as when the time comes to resell, the market pool looking to purchase from you also smaller. It's all a wash if you got the larger contract cheaper, but expect it to seller for cheaper per point when you do need to sell for any reason.
Good luck with whatever you decide to do, but I believe it's best you read, read, and keep on reading some more until you feel comfortable on what to purchase, or if you even purchase at all.
Great3