Anyone who bought one when they came out has had it run out already. And it sucks. It brings me back to why I stopped really playing very much, there is no reason to stay on after your mist is gone. Spiral Knights feels like some really repetitive daily quest in WOW, and after completing the heat on multiple gear sets (all 5 stars) there isn't much to do aside from Lockdown.
But when the Elevator Pass was out I was online for hours, playing with guild members, farming heat for new gear pieces I wouldn't have gotten without the incentive the pass gave me, or even just honing my sword skills all because I could freely do so and my mist was a self res counter. And I was not the only one, my guild had 15+ people online the majority of the day. Now... there's like 2 (counting me) and MAYBE 3 on at one time. I understand (from a discussion with a gm) that the pass was a temporary item and MIGHT come back another day, but I really like this game and buying CE or relying on my daily Mist just KILLS KILLS KILLS any replay value and any drive to sign on to play.
And as game designers not only is replay value a must but the more I was online the more times I may have been tempted to buy CE to go splurge on some shiny new thing. Just saying. You'd make money off the pass and money off the CE people would buy for new stuff just because they'd be playing more often.
TLDR: Bring the pass back, logging onto a game where my friends and guildmates aren't online and only playing for an hour or 2 a day gets harder each time it happens.
>didn't buy 50 explorer packs last month
>2012