Are you playing limit or no-limit?
If you're playing no-limit, then the pre-flop odds you're getting don't matter much unless you're all in or getting something insanely good. You're not going to get your hand to showdown often enough for odds to matter. It's about position and not flopping second best hands you have to pay off with or fold.
If you're playing limit, then it's just pure math because you know the most you have to pay + small implied odds can justify a call. It's math in no-limit too, but you just don't know what that math will be.
You sound like someone who could benefit from this library.