What I'm trying to get my head round is, let's say you have pocket pair preflop and your odds of flopping a set are 8:1. Current investment preflop is $50, so the total ROI, as I understand it, for it to be worth a call/raise preflop despite low odds, has to be $400 at least.
The flop comes and you make a set. Do we now disregard the implied odds (at least more so) because we have our draw? Is it now a case of making the ROI (not the pot, the ROI) at least $400 to cater for the times we don't flop a set?
That sounds right to me...