They are excellent little modules.
I know it's probably inappropriate, but I'm going to mention it regardless. Besides, you can't get them anymore anyway... I have a Lambda Ill Pill - the first pill-type drop-in Luxeon module for the MiniMag and I absolutely adore it. I was lucky and Lambda sold me one of the last ones he had hanging around - a rare, almost perfect, white Luxeon. IIRC, the Ill Pill is voltage regulated, not current regulated like the BadBoy, which makes the BadBoy more advanced.
A BadBoy won't disappoint you at all if you get one. That much light coming out of a Minimag is always a treat! Plus it makes anyone who borrows it look straight into the beam because they know something's not right with a Minimag being that bright!
The MadMax+ is just screaming bright for a 3v Luxeon mod. Really nice, but sucks the batteries down in about an hour (but what the heck, 2AA only cost about $1.00...)