Were you originally planning to do otherwise? Do people seriously upgrade after just one refresh?
Wouldn't you if you had the money for it? I would. I wouldn't have a Mac Mini but a Late 2013 Pro instead.
I own a 2010 MBP which had coffee spoiled all over it. Died, of course, but was magically reborn after disassembling and cleaning for almost a week with cotton swabs and buying a new battery. Still rocking with 4GB of RAM and a 128GB SSD. But of course, if I had all the money I wanted, why not get the latest MBA every year? Sounds fun. lol
Now seriously, I hope I can keep this one until 2016, costed me over 1200...