Unrealistic Movement Point System

[dmm]

As I've been posting to a "Retreat Rule" topic and to a "Planetary Bombardment" topic over the Last week or so, it has occurred to me that the whole movement point (MP) system is not very realistic. Consider a fleet with 6 MP. In one turn, it can either
a) move 6 sectors, or
b) move 2 sectors and have a 30-turn combat, during which it lands troops and fights a land war. Then it can re-embark the troops and lay some mines. Then it can move 2 more sectors and do the same thing, and then move 2 more sectors and do the same thing!

I'm not saying this isn't fun. If it's never "fixed" I won't care too much. But I would prefer a more realistic system. Perhaps something as simple as penalizing you 1 MP for things like battles, ground assaults, troop embarkment, cargo loading, refueling, minelaying, etc. Or maybe not a whole MP. Maybe just a fraction of 1, and you only get penalized if you abuse the system and do a bunch of stuff all in one turn.