i've got 113. i missed several event stickers because i usually don't bother with events anymore until last minute.
haven't bothered to buy anything from the club either because there simply hasn't been a "MUST. GET." item from there. and even if i'm remotely interested in an item i know i can just grab it from marketplace for a couple thousand because theres already enough people wasting their stickers on them. like 50 sticker ghost skin. i bought it for 10k off marketplace a year or two ago and i just checked and its 4k
they should add ridiculously expensive desirable items that soul bind upon purchase. like theres this daily event on an mmo i play. you need to do it 400 times to get a super cool awesome black ghost mount.
unfortunately wing stickers are only available during events or monthly update poll voting.