Sorry for gravedig, but you've got it wrong.
The M-100 isn't in the LP range. The M-100 was developed ON head-fi, FOR Audiophiles.
The LP (LP / LP2) was made for DJs and not for audiophiles.
Agreed
M100's are one of the best public consumer use headphones to enter the Audiophile market. Somewhat mainstream music listener influenced sound signature, but with more Audiophile quality in the sound. The LP's are in no way for Audiophiles, just an option for bass-heads to test out. They just don't carry the level needed in other sound regions, which is why V-moda created the M80/M100.
I don't think every M80 user will enjoy the M100's more though. Only if your looking for stronger, deeper bass. The traditional Audiophile seeking more neutral sound will not enjoy it, preferring the M80>M100. (I, however, love the M100>M80 for what it does) TO EACH HIS OWN. V-moda does a great job to reach users at different levels of preference. I think ATH M50 lovers might like the M80's though.
Bass-wise: LP > M100 (slightly less than LP, but much better quality of output, not muddy) > M80 (more than neutral headphones, great entrance if you just want a little more, but not too much)
Midlevel/higher: M80 >/= M100 (Although the stronger bass does not leak into and obstruct other sounds IMO, it pushes some to prefer the M80's here) > LP (just do not hold the same clarity as the M80/M100)
Classical music, Vocals: M80
Contemporary to Mainstream: M100