If you're using a good caching plugin lke Quick Cache, the files are served from a good CDN and the theme is optimized, and no other plugins cause pages to load slow, it shouldn't be a problem soon. At that point, you may need to move to a better server. I really don't know how high your traffic will need to be to cause you trouble if you have your site properly set up.
You could have the free content and the paid content in separate wordpress installations if you want.
Does that help?Statistics: Posted by Cristián Lávaque — November 11th, 2011, 12:55 am
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