the really cheap lease prices probably include a loyalty credit for current infiniti owners (only). Just saying be wary of someone who is much cheaper than all the other places.
+1
Also many times the advertised cheap rate is only for customers with top tier credit.
It usually says that in the fine print but most people don't read that and once they go down to actually lease the car they find out that it'll cost them an extra $xx(x?) a month.
By that time, it just takes a bit of sales talk and the person ends up leasing the car (at the higher rate).