Henry
Autoexreginated
You don't hear the 1E & 2E crowd bellyaching because they can't pick up a new supplement at the local gaming store, do you? 
Well, there's two reasons for that, and one is that they have the pre-3E clones to fall back on, lack of defense against which WotC might end up regretting in the future, because if there's a big enough desire, you can bet a "4E-compatible base ruleset" will pop up under the OGL or a similar license -- probably the OGL simply BECAUSE they have reign to use terms like Armor Class, Hit Points, saving throw, etc. Papers and Paychecks, commenting on OSRIC, said the terminology from the OGL is what made it possible, not the rule sets.
The second reason for no bellyaching is because the old books aren't leaving -- everyone currently has everything they possibly need to play 4E for MANY MANY years. I can personally attest that you can get by just fine without the DDI -- I've been playing a Dark Sun game for a year now with a PDF fill-in sheet and a power card creator program, and it's been working flawlessly.
In the end, I think the OGL has not only released D&D to the public for consumption, it's also muddied the waters sufficiently that any version of D&D from here on out will be available to the public to create material for after its demise.

Well, there's two reasons for that, and one is that they have the pre-3E clones to fall back on, lack of defense against which WotC might end up regretting in the future, because if there's a big enough desire, you can bet a "4E-compatible base ruleset" will pop up under the OGL or a similar license -- probably the OGL simply BECAUSE they have reign to use terms like Armor Class, Hit Points, saving throw, etc. Papers and Paychecks, commenting on OSRIC, said the terminology from the OGL is what made it possible, not the rule sets.
The second reason for no bellyaching is because the old books aren't leaving -- everyone currently has everything they possibly need to play 4E for MANY MANY years. I can personally attest that you can get by just fine without the DDI -- I've been playing a Dark Sun game for a year now with a PDF fill-in sheet and a power card creator program, and it's been working flawlessly.
In the end, I think the OGL has not only released D&D to the public for consumption, it's also muddied the waters sufficiently that any version of D&D from here on out will be available to the public to create material for after its demise.