Occam's Razor
If they offered both 2 and 4 gig ram models in Apple stores across the country at introduction they would have had to build thousands of 4 gig models that would have sold less than the 2 gig models. The math of the distribution alone probably led to their decision. If 4 gig models sell well online, I wouldn't be surprised to see them in stores.
For the record, I have a wonderful base model 11.6 with which I am generating 3D scatter plots for carbon isotope research. It is handling some frightening spreadsheets and is doing just fine. There is sometimes a lag switching to spaces, but the same is true of my 15.4 MBP with 4 gigs of ram.
Serenity now, serenity now.
If they offered both 2 and 4 gig ram models in Apple stores across the country at introduction they would have had to build thousands of 4 gig models that would have sold less than the 2 gig models. The math of the distribution alone probably led to their decision. If 4 gig models sell well online, I wouldn't be surprised to see them in stores.
For the record, I have a wonderful base model 11.6 with which I am generating 3D scatter plots for carbon isotope research. It is handling some frightening spreadsheets and is doing just fine. There is sometimes a lag switching to spaces, but the same is true of my 15.4 MBP with 4 gigs of ram.
Serenity now, serenity now.