I've seen other people offering 18 card sets for 1 TF2 key. Your prices seem slightly high.
It's fine, I forgive you, of course, no big deal. I understand what you mean. Sometimes I can see threads here where people give even 20 sets per key, but those are from those free founded games which cards cost on market 4 or 5 cents (with fees, so without is just 2 cents) and there are like 5-6 cards in those sets. Anyway I don't level up anymore, so I don't understand why people level so much this sale sets (I did that mistake few times, one time I leveled it to 77 level and now I deeply regret for wasted potential wallet/money). Anyway if this time I don't have luck to sell it for PP or keys, I will put it fast on market in few days before it expire. Have a good luck in trades, see you around. :)
Steam Summer 2017 71 full sets (710 cards, 71 of each from set)
35.5 euro on Paypal (0.5€ per set)
or
18 TF2/CS:GO keys
Don't add me on Steam before first comment here, because I am rejecting random friend invites. Price is firm!
P.S. Your Paypal must be verified and payment must be via friends& family option.