Sagan Darkside said:
Or an non-arrogant/elitist way of saying it may be that it is catering to the most popular roleplaying game- that has a large player base and was often the gateway rpg for people who now play other rpg's.
Uh, why do people who are playing other RPGs want to go to the d20 RPG? Why should they have to leave their games for d20 just because D&D happens to be popular?
Converting all sorts of games such as ShadowRun, MechWarrior, the DP9 games, etc. to d20 just for the sake of it or because D&D is popular is silly. If publishers want to go to the trouble of giving d20 stats for their material, then that opens it up to more people.
Considering how busy the lives of my group members are- this is nonsense. We play rpg's for variety- outside of work, family, and other social/economic obligations.
This is arguement doesn't hold much water as almost everyone is busy with life [or I'd hope they are]. The group I game with gets together roughly once a month if we're lucky because of life and schedule meshing. Yet guess what? We also do play other roleplaying games too even some wargaming such as Necomunda or Dawn of Aces. The "time" arguement basically says that because we, and I speak of the group I game with, are so busy with life that we can only game one a month that we should have, done for us, d20 conversions of Necromunda, Dawn of Aces, Paranoia, MiB, etc. just because our "core" game happens to be D&D. What exactly is the fun in that?
The overwhelming majority of gamers are d20 gamers, specifically D&D gamers, and they don't want to use any other game engine; you have no chance whatsoever to sell it to them if it's not d20.
Great, now prove the two statements you make are actually fact.
I have to say that, of the universal systems I have played (Hero, GURPs, and d20), d20 is the MOST universal, and the BEST able to handle widely differing genres.
We have differing opinions. The simpler the system, the easier it is to translate between systems. D&D is quite complex, enough so it takes basically 2 books [PH and DMG] to describe.
Although M&M took a very different, OGL tack (and a good one at that), I went straight d20 with Vigilance, you pick an Origin, a Class, roll your HP every level, take prestige classes at higher levels, the whole nine yards.
M&M didn't just take an OGL tack, they stripped and streamlined their ruleset to tailor it to best represent the game they wanted to protray. Sure, there is a core thats the same as other d20 games, but there is a lot thats not.
The author needs to say that!

Personally I'm not particularly interested in playing D&D in different genres.
The idea that the writers and game companies are just catering to some mindless mob, and that the people who play and GM the game ARE the mindless mob (the "lowest common denominator"), is just silly.
No, what they are catering too is the "preceived" majority of gamers who play ONLY D&D or d20 because they either don't have time, desire, knowledge of, or have been mass-marketed to death not to experience other systems.
Its the BEST game system out there.
Says who? Definetly to me its not. I play D&D because I've played D&D since 82/83. 3rd Ed. has its problems, but it seems to flow better than the other revisions in most cases. Obviously its not to the designer of M&M since he modified quite a bit of it. Its obviously not to the guys producing HERO or GURPS or the guys over at DP9. And so forth.
Variety is the spice of life... which is the beauty of it, yer welcome to your d20 spice! I'll just take a little less d20 spice than you.
Saying d20/D&D is the best system out there is like saying that because currently Ford sells the most SUVs that they are the best SUVs ever made.