I'm one of the people that doesn't own any of the games in this, so its a good bundle for the price, but overall it's sort of underwhelming. All of those games have been available for less than $5 at some point.
I'd you are going to do a blind bundle, you really need to anchor it with a great game that makes the whole package worth it. Like a relatively well regarded AAA game from the last 18 months, or a new indie game that hasn't hit discount territory yet. Something like Invisible Inc or Volume would have been great inclusions to really nail that it's a good deal.
I will probably go one more month, but as soon as I hit a month that I own a few games, I'm done.
Humble has said this model.allows them to get better games, but I'm not seeing it.
Capcom bundle was a better value, IMO.