Mlst2 has a few benifits... that make it worth more money
1) DSM... rx is worth the change in price ALONE
2) METAL DIFF GEARS front and back on mlst2/mmb... If you get a mlst and abuse it, you WILL upgrade eventually to either these or viscious.
3) one piece rear hub, just less things to tune/break... Cheap however, you CAN convert a mlst to the 2 style rear hub
4) mmb has lipo, mlst is same battery as mlst2 however.
5) body & rims, you decide...
6) threaded aluminum shocks on mlst2/mmb verse plastics with spacers on mlst
you decide, stick to your budget if you are on a tight one.... enjoy! there both great, one is a little tougher, but youll have tons of fun.