Even if you don't want most of the games the value is way better.
No it isn't. Unless you plan to sell those keys. Paying $12 for 3 titles is "ok," if I'm getting $60 worth (like the Deus Ex month) out of it. Getting a bunch of indies isn't "better value" unless you plan to play those indies. Which... I'm not.

So for me, the value of the mystery box was worthless, double-so with my distaste toward the whole mystery box aspect of the entire thing (Pay $12 to get... some shit you may/may not want! Yay!).
I only paid for two months: The Deus Ex and this month (for Spyro and Crash). The rest either had shit I already got on Steam sales (Thereby :some1curr ) or was indie kusoge (

) so the value preposition was worthless.
I'm not surprised others did what I did: Subbed and then quickly unsubbed. Maybe if the months had a bunch of killer things that were solid but not shit I already bought on Steam sale (like Slay the Spire in August), people would've stuck around/it'd been more successful. But I don't fault others for doing the same shit I did with "hard pass."
I'll eat the $4 increase monthly if their shit is worth paying that much. If not, I'll pass or get the lower tier depending on what shit they get. Either way, dropping the whole mystery box bullshit and letting you see what you're getting for your investment is a better deal.