Why would anyone subscribe to play a casual puzzle game? I've no problem with puzzle games. There are some very addictive ones out there. In fact, there are many, many addictive ones out there that are either free or charge a modest one off fee to pay.
I would call this more than just a casual puzzle game. Are the other puzzle games fully multiplayer, do they encourage competition in gameplay, do they offer prizes and torunaments with cash rewards? Do they have a dynamic storyline that not only encourages competitive play, but also changes based on the outcome of player actions? Do they have a system that allows them to create their own in-game items to share and or sell to other players, etc...
While the base of this is a "match-3" game, it is a whole lot more than that. I have the sales figures from Puzzle Quest and even the PSP port with known gameplay bugs and issues (which I, personally, would call crap) still sold over a half million copies and it was not even fully multiplayer.
There is always a chance for failure -- a modest chance -- but it is a chance that I have to take.
I have 4 other contingency plans should my initial plan fail.
I am no stranger to failed business ventures. I had over 15 failed ventures before MDP Enterprises, LLC -- which has made me over $250,000 in 3 years with an initial $8.00 domain investment and 200+/- hours of coding.
I appreciate your concerns/comments and I actually want to hear more of them.