It's strategic marketing. Ofna is trying to market to every aspect of the r/c enthusiast as they can. That is why they have soo many different buggies. The newest LX Comp being there lower end of the spectrum is is geared more toward beginners and bashers- it's not really race ready out of the box with it's fuel tank, motor and suspension width. None of them are legal for sanctioned racing. Club racing however- you may want to check with your local club- they might allow it. As for durability- I can't comment on it as I haven't owned a LX Comp- but I could imagine it wouldn't be so great when taking into consideration all the corners they had to cut to give them away at that price.