I've had the same set of Swiss 6 for almost 4 years now and they're still as good as ever. I bought a 16 pk of them and they've really been lasting. I think if you have the funds to buy expensive bearings, as long as you clean them a few times a year, they'll last you long enough to justify it. It's like playing the long game instead of buying a set of REDS 4 times a year.
But if you're in a pinch, just get Mini Logos, pretty much same exact bearing as REDS but much cheaper.