If you are content with what you have, and can do everything you want to do with what you have now, then keep with what you have now. That goes for many things in life (not beer though! always good to try new beers, then again, the cost of trying is rather lower than the cost of a new Amiga!).
What do you use the computer for, given that you had a long time out, and presumably have a PC or Mac to do most tasks?