Here is my take on it. The Genesis has the WOW factor. Its got a .46 sized engine, and its huge. Visually impressive. Bad thing is, that engine is most likely the only engine you'll ever put in it. So i hope you like it. Its not a standard size engine, so dont keep your hopes up for an aftermarket replacement for that truck. I still like the truck. Visually a total monster, and impressive. I've read alot of people talking about the HIGH cost of replacement parts. Thats bad in any situation. You WILL break parts, thats a given with ANY RC. I confirmed these high costs by checking prices on the net. They did seem high. I believe i found the parts at RCmodels.com. The Genesis has a very small aftermarket following, but it does exist. The LST on the other hand is without a doubt growing popular like a wildfire. I know this, because i see new owners at my local track all the time. It has a VERY fast growing aftermarket, and Losi supports it extremely well. Its also a nice truck to run on a track. It also uses the standard size big block, which leaves you MANY options. With all that said, i have even thought about the Genesis myself. However, if i were to choose one, it would be the LST.