VCP would be for vintage cards only (early 1990's and earlier). I would choose this service as they give you sales history on top auction houses and eBay. imo this gives you better insight on the current market for knowledge on purchasing and pricing your own PC. The prices are for all of the top grading services like PSA, BGS, and SGC
Beckett I believe only gives you Beckett grade pricing. I am not a Beckett collector or user so I am not sure.
VCP is such a great resource and worth the subscription
