Comment by animalCrax0rz

Google is in the business of producing quick results to sell ads while keeping the cost low. If anyone does better, they will likely do it using a costlier algorithm, and if there is more margin in reselling tangible products than ads then Amazon is incentivized to use costlier algorithms that are more accurate. But I think the margin in both cases does not justify the use of algorithms that may be more accurate in some small percentage of cases but a lot more costly.