I am 38. I have never watched a full game of 20/20. I have grown up with 50 over cricket & accepted it as the part of the summer landscape. Every year for the last 5 years i have taken less interest in 50 over cricket to the point that this summer, i have not watched a full game of 50 over cricket.
So, i am left (thankfully in my opinion) with test cricket. So as far as the "future" of the game lies, will "fans" of the 20 over game appreciate test cricket like i do (as stated, grew up in the Packer era), or will they see this slog-fest as the future of cricket. Only time will tell.