I do agree with pretty much everything you said. I too am a mainly single-player gamer with not much attention spent on multiplayer (with very few exceptions). However, over the last decade there has been a downward trend in single player campaigns becoming shorter and shorter and streamlined to the point where you feel pushed along with no decision-making required.
Honestly? I cannot think of very many games that I've played in the last few years whose single player campaigns would have been worth $30. Maybe Mass Effect I.
You are 100% correct, however, in that companies today are bolting on cookie cutter multiplayer games to watered-down single player games and we somehow arrive at the same $59.99 the industry commands for titles.
It would be very interesting to see companies begin to separate the two and sell them as completely different SKUs on the market. I, for one, would be picking up the single player discs happily without ever touching the digital download of multiplayer on most of the titles I play.
I am a game renter through Gamefly. Why? Because I was tired of shelling out $59.99 for crappy games. I was tired of reading the paid-for over-inflating reviews of titles, only to get it home and discover that they were not worth their production costs. I was tired of an industry that had moved towards a "no demo before release" standard where I had to roll the dice on knowing what was behind the wrapper before dropping $60. And I was tired of spending $59.99 on a title to have it be beaten in 10 hours of game time and in less than a week's time take it to Game Stop and get $20 for it (and for them to resell it for $55). So now Gamefly buys all of my games for me. I rent them from Gamefly. And if I really love the game, I have the option to buy it -- which I've done a couple of times now.
Intel CPUs are not defective, they just act that way. -- Henry Spencer