Quick answer to the best value: ONE THAT IS CUSTOM MADE FOR YOU PriceYak (Used), Listerr.co (Run by two pretentious high school idiots that do DSD and do not offer any support) both have backend listing tracking, where they would adjust your listings that are selling and optimize theirs. Tried PriceYak and literally the week after I quit I lost ALL sales from those listings. It annoyed me but then it hit me: The ugliness I see in these brands is a mere representation of myself. I imagine I'd do the same if I was in the same position (except those high school idiots). On the other hand, I have heard of SkuGrid and 12 hour price checks is $29.99 is good. Anyone else have an opinion?