[quote name='Hunter Hybrid']So are any of these Lego games a good price at $10 or have they been at a lower price on disc?[/QUOTE]
If you like collecting games and don't turn to a FAQ too quickly, you'll probably get ~30 hours out of the Lego games, except for Star Wars TCS, which will be quite a bit longer.
Some of the older Lego games would show your total play time when checking the save on the Dashboard, and I put in ~30 hours into Indy 1, 32 into Star Wars II (not part of the sale), 36 into Batman and a little over 70 into Star Wars TCS. I've also completed Indy 2 and both Harry Potters, and while those saves don't show times, I think they were also in the 25-30 hour range.
A lot of the time gets inflated by replaying levels to collect the various things, and needing to do Super Story reruns in Star Wars can be a pain, but that's how the Lego games play.
For the amount of time I get out of them, I'm fine with ~$15 for the disc versions, and am not disappointed having paid that much for the physical copies of Star Wars III and Pirates still in my backlog from earlier in the year. They make for a nice palate cleanser between more "serious" games, and I'll probably knock one of them (or Batman 2 from Amazon BF) off my list after I burn out on Borderlands 2.