I'm in the process of upgrading a 5 year old desktop application, and I'm looking at different ways to generate revenue from existing customers as well as new customers.
A new feature that will be added to the software will be a portable option, whereby the user can install onto a thumb drive and run from any PC - without reference to the Windows registry or local files.
Would it be legitimate to charge extra for this option? To have two versions: Product A and Product A Portable, with one priced at $40, and the other at $65 or thereabouts?
Or have users come to expect software these days to be fully portable without paying extra?