Most native English speakers only know one language. If you're functional in more than one language you're way ahead of us.Sorry for my English.
anyone else?
Unless the OP is a power user, a newer MBA will function perfectly well for at least five years, probably longer. My evidence: look at other forums at MacRumors and you'll see people (including the OP) using 7-10 year old MacBooks. The processors are getting slow, that's about it.It depends on your priorities. Portability over function, then go with MBA. Otherwise, then go with new MBP.