I've always thought of the 250LM as a much better can than the GTO, personally, even in terms of beauty, and they can be had for under half the price of a GTO. They have the sort of clean looks that make attractiveness seem effortless, and they were fantastic race cars for the day.
No question. The LM was from the ground up designed as a racer. The GTO was a modified chassis and suspension from production vehicles. Still 14 meg for an LM, utter madness.