1rst: runes used to be vex+ =high, now its more something like Sur+
2nd: you are unlucky, runes drop everywhere, but for now ( it will surely change with 3.2) "normal" d2 magic find area arent any use, inferno pits, plagueland, ryleh are better place to Mf.
3rd: do you play on ladder mode? theres no one playin on non ladder.