And what's funny about the "Rare" Finest is that they are actually less rare than the base Finest cards. You have a 1:4 odds of getting a rare selection (20%, since 1:4 odds is the same as 1 in 5). So if you'd open 15 regular Finest packs, you should theoretically get 12 base packs and 3 rare packs. Since there are 14 base Finest and 3 rare Finest, per the odds, you'd get all 3 of your rare cards before completing all the base picks.
And then throw in the guaranteed Rare packs at the end of every TA, and the Rare Finest cards are going to remain very, very cheap