Buying points is always tough. My current site, which I'm not a big fan of...doesn't allow it very often. I miss my old site but anyway...
Yeah, I had Virginia +1 1/2 last night. I considered buying the point but didn't. I usually don't like buying in bball unless it takes it to +/- 3.
Sure enough, NCSU ends up with the ball down by 1. Somehow, after a timeout, the best shot they can get is a 25-footer. It missed badly, but if it goes in I lose where I could have bought.
I think it comes down to what kind of gambler you are and discipline. If you are the guy that puts the same unit on almost every bet and play several games a week, in it for the long haul up's and down's will pan out at the end.....then you should probably never buy.
If you just want some action and/or are not like the disciplined example above, then I think buying makes more sense. This is the category I fall into. This isn't my job and I do want to make money but I am a lot more risk/reward.
Overall, you just have to make that decision and go with it. You can buy 10 points sometimes and still wouldn't win. Other times you buy that crucial 1/2 point and your team covers by 20....and a half lol.
I mainly just go with the important #'s, of course 3 is probably the biggest in both football and bball. Sorry you lost, esp in OT...