To add to Peter's comment above about chip obselence, Apple has been known to effecively 'render unusable' an entire generation of 3rd party adapters by making changes and claiming that they are doing it to 'improve security' or some other BS (it's all about preserving their revenue on their wildly over-priced accessories like adapters, cables, power supplies, etc).
If that risk is something you can't live with, then you do just have to foot the inflated cost of Apple original products. Remember, Apples adapters still vanish or get damaged (they are still the same plastic as the cheap Chinese ones) so make sure you have a spare and keep it in a different gig bag/flight case for redundancy!