"¿Por qué no los dos?" A lot of the issues that he has seems to be running on hardware that Linux doesn't currently support well. Used 1 liter PCs that are old enough to have solid support under Linux but still fast enough to do serious work are $200-400 and can be accessed remotely from Windows by VNC or RDP.

To forestall the inevitable, yes, that's extra cost. Well, the person says the want to use Linux more. Do they want it badly enough to put money behind it?