Tesla launch new referral program with $1000 rebate

Has anyone reference in the efficiency of such programs. It seems to me that $1000 will not make a big enough difference to make someone buy a tesla. Most of the buyers that will enjoy the rebate were probably going to buy one anyway.

On the other end the fact that the owner can get up to $10000 with the referral program might push most owner to oversell the quality of Tesla cars.