There is the factor of diminishing returns though once you've already paid for one version. The next one has to be that much better for it to make it worth it.

There is the factor of diminishing returns though once you've already paid for one version. The next one has to be that much better for it to make it worth it. With text editors it's difficult to add enough value in future versions since everything a good one does to help you work should be there from the start(easy navigation in and between files and easy modification of data once you're there) the rest is just fluff.