For me I got NCAA for $45. It's been frustrating, but worth that price absolutely. Your sliders have made the game for me at least. On Madden I paid $50, but I wouldn't pay $60.
I agree that If I get hours of enjoyment its worth more than the price tag. What I'd say brings Madden down is that I can't get into CCM, user vs. computer doesn't do a whole lot for me and lack of editing. Have I got a lot of value out of Madden with my friends? Absolutely, but none have xboxs so it's on me to bring it over to play.
NCAA I've put a ton of hours into just rosters! I probably have got no where near the value that the full price would have been. Because of your sliders I will be finding that enjoyment I think.
For me, this is my differences and I'll list...
$60- great user vs computer experience, Deep franchise/dynasty mode, editing options that are open, fun two player game, lack of bugs or freezing
$45- lacks in either user vs. computer or two player. Has some bugs or freezing issues, editing limits on many things, average franchise mode.
$30- bugs, freezing, some issues, might do some things actually really well and others really bad!
IMO $60+ values, NBA 2K11, MLB the Shows, Madden 10, NCAA 11, UFC 3
$45-NCAA 13, Madden 12, NHL 12, NBA 2K12 (iffy putting it here) Madden 08
$30-Live 10, Madden 11, NHL 11, Fight Night Champion
Ill add I respect the heck out of FIFA, but I don't like soccer and can't get into it. They make a really fun game and while it may have some issues I read, it nails all my $60 wants.