Johnny Detroit said:
never in CFB. even in NFL, it is still not really worth it. most times you hear games landing on 3, it is games landing on 3 overall, not games lined -3.
This is a very good point that people do not think about. PGF and VR did a video a while back where PGF was quoting all games in the NFL landing on 3, 15% of the time and the value should be based on that percentage. The value of buying on or off a number is how often the fav wins by 3 when they are -3.
There is no number in CFB worth buying unless you find someone dumb enough to let you buy off 3 for 10 cents.
In the NFL, buying on or off 3 for 20 cents is ok. Buying onto 3 is worth slightly more. In addition, the lower the total, the more the half point is worth.
Getting on or off 10 is actually worth about 10 cents, so if you have a low total, it's ok there too.
The better idea is to get more outs. If you have more options, it's very likely you'll be able to find that 10 when everyone else is 9.5, and you don't have to pay anything extra for it