Well, there is also the problem that the crowd that these kind of games were designed for are now one decade older than when this model of game was introduced to appease them. There just isn't that many of them left, and some of them are now 40+ years old, which does have a detrimental effect on reflexes (but thankfully leaves learning unaffected). So the game appeals to a "wider audience", but has an end game that can only be done by a small number of players. Those same players, however, also account for something like 80% of their revenue. Unfortunately, it was easier to play these games when the bulk of the player base was of the same crowd.

And before anyone says that younger players don't have the dedication or skill, that is downright wrong. They just have different expectations for games than our generation did.