The Ben TK800M is only slightly better than the BenQ TK800, since there aren’t too many differences between the two. You do require more room for the TK800M’s throw rates, and the colors on the TK800M are also better. You also get more use out of the light bulb inside due to the extra light saving mode available on the TK800M. So if you do have that extra $200 to spare, do opt for the TK800M. But if not, the TK800 in itself is a decent choice.