I'd also contend that, with the same frequency that it's good to create something really good for a niche instead of ok for the majority, it's good to create a

I'd also contend that, with the same frequency that it's good to create something really good for a niche instead of ok for the majority, it's good to create a fantastically capable ajax app that's only usable with tracemonkey, v8, or squirrelfish. The other great part is that the niche you're writing for is expanding geometrically.