Mugen MBX5R 599.99
Kyosho Inferno MP777 WC 659.99
Team magic M1-B - 639.99
The prices seem to be about the same to me. (all the above came from amain hobbies) I have seen the M1 as low as 599 online.
The car is just as good or better than any other car out. At my local track i turn just as fast laps or faster than Kyoshos, Losi, XRAYS, etc... I know for a fact the car carries more corner speed and is better through the bumps than any car i have had and i have had pretty much every car. The car also steers better than most. I have passed many buggies in the turns by turning underneath them.
Until you drive one its hard to really say, those videos were peoples first days with the car. Check out the neo buggy video where the car made the A on its first race out at a HUGE event.