True, except many gamers distinctly prefer the game they're most familiar with or have resources for. You're dramatically underestimating this group in favor of the connoisseurs that have strong edition preferences. Of course the connoisseurs exist and they'll always want new stuff, but some of us would like to know there's a version of D&D that's not built on planned obsolescence.
It's not planned to, it's planned FOR. You need to have an exit strategy oin business. Likewise you don't plan on being an adult, you don't plan to grow older, you plan FOR it because it happens whether you want it to or not.
That was when D&D was most lucrative, no? I don't hear many other gamers of that generation claiming the same thing.
There was also a lot less competition in the marketplace because it was new and the internet wasn't in common use yet. This may be a bit hard for you to understand due to being too young but there was a world of gaming before google. Games had to be introduced teh old fashioned way. Marketing was a LOT different.
No, they just need to reprint one D&D edition and stick with it for the players that don't want the edition treadmill.
Sticking with one edition means digging your own grave as a business. You need to sell stuff to make money to stay in business. Your Monopoly analogy really doesn't work either because you're not looking at it from the right angle. Monopoly is one of the games that's stood for a long time but there have been many that use the same basic mechanics/principles of it with different packaging, including other versions of Monopoly. There's also hundreds of different family board games out there, including long discontinued ones that people still play. How many people still have and play their old Avalon Hill games?
Monopoly isn't an ongong game either. It has a definite beginning and ending. You "finish" the game in one sitting. People who play family board games may play Monopoly, Stratego, Risk, Clue, Scrabble, Boggle, Apples to Apples, Balderdash, Mindtrap, Trivial Pursuit, Hungry Hungry Hippos, you name it all in the same game space. They're much less involved rules-wise and simple to just pick up and play.
I've played five editions of D&D (2, 3, 4, PF, C&C) and can write extensively about the pros and cons of each. I definitely have preferences. But the pros and cons of each are largely overshadowed by the problems of incompatibility between editions, having to teach players new rules, and having to do with limited resources (because people only have so much money for books). That has always been the biggest problem in my games
It's an artificial problem. You want them to play the game you want to play rather than playing what they want/know. If group only knows 2E and don't have the resources for a different game, then play 2E with them. Then play 4E with another group. Then Call of Cthulu with another. If you have the option of playing a game you like with a group, regardless of what it is, then play it with that group. The only person that needs to know the differences are then is you because you want to play the different games.