Steam Your highest level on steam?

Something around level 60. I was on 50, but the summer sale really broke the level system and made it far too easy to level up. I used most of my tokens for the 5 euro coupon though, so I didn't level that much.
Most levels came from just finishing the trading card sets of games I enjoyed and had received half of the cards through playing. Isn't that expensive to do it like that.