To be fair, it's sort of hard to know these kinds of failures until they're in the wild. That's just the nature of the beast; it's not Apple's fault necessarily. Again, that's why I don't understand the rush to be the first adopters. Usually those people get screwed over the worst and/or have the worst luck when it comes to the products they receive.
There is a difference between waiting one or two months after the device is released and simply holding off altogether. It's not a binary decision of "buy product on day one or buy next product on its day one". You can and often should wait for things to be ironed out. I bought my iPad Air in January, two and a half months after last October's announcement. That was enough time to assure that any early problems were addressed and worked out, which is fine. I'll be doing the same for this year's iPad mini as well as the iPad Air I buy however many years from now to replace the one I bought in January.