The Humble Monthly Bundle is changing to Humble Choice. https://www.humblebundle.com/subscription/classic
Like the normal bundles, it's going to be tiered. HOWEVER those who have subscribed to the Monthly Bundle in the past are going to get the bonus classic tier which is going to have a much higher cost/benefit ratio to those who weren't on the monthly before.
In the collage above I put references to some of my favorite games I've gotten from the Humble Bundle in the past. Those are just the very tip of the iceberg.
You don't have to subscribe long term to get in on the classic plan - I subscribed for one quarter a couple of years ago and I qualified, but I jumped on for another recently. You do need to do it before they switch over if you want to take advantage of having the option to get more games at a lower cost.
Generally you can get a whole Bundle for cheaper than the game you want is offered on Steam directly, and you still get the game on Steam.
Do yourself a favor, buy one month now before they change over (or get a quarter, whatever) and do me a favor, use my link below so I get a credit and it doesn't cost you any extra.
Do us both a favor and use this one: https://www.humblebundle.com/subscription?refc=PBw2Z8