I have an aLosi buggy and I love it so much I am going to get me a truggy also. I bought mine used and in excellent shape. I will probally do the same thing with the truggy. As far as waiting to see if Losi is going to come out with a new model. I would say if they have not started hyping it already probally not. Just look at all the threads for the new buggys that are going to be hitting the market in the next 3 months. Those threads and the hype got started atleast 6 months ago. Go ahead make your purchase or wait a couple a months to get a good deal on a used buggy. Like zjwhitrock said alot of people are going to be dumping there equipment. Due to upgrading or needing money for christmas. Even if they due come out with a new buggy your still going to be able to get parts for quite sometime.

As far as engines it should be based on the track you run on. short technical tracks require more torque and bottom end. Long sweeping tracks with lots of straights you want a good top end engine. I don't want to start a better engine argument so lets just say 3-5 port for short technical, 5-7 port for long tracks. 5 port is a good all around engine with best of both of both worlds and middle of the road on price also. Servos choice should be based on whether you get a buggy or truggy. Truggys need more torque in the steering servo than a buggy. stick with a good top brand and you usually cant go wrong there.

Good Luck