I would go with the Trek based on two things:
1. Resale. Your going to have a much more difficult time getting your $$ back out of the Moto vs the Trek. Whenever it's upgrade time, the Trek will sell faster and for more.
2. Warranty. I'm a sucker for a solid warranty like Trek's and I'd rather deal with an established company like them than BikesDirect.com.
I still have a Motobecane Fantom Trail HT I bought in 2007.
For the extra $$ I think the Trek is the better buy with the dropper post, fork, and resale compared to the Moto.
I also own a Salsa and I think the Timberjack is a nice bike for the price.