Exactly. There's a reason an IFR GPS navigator costs upwards of $10K. It's incredibly expensive to make certified avionics. "(an aviation grade GPS can cost up

Exactly. There's a reason an IFR GPS navigator costs upwards of $10K. It's incredibly expensive to make certified avionics. "(an aviation grade GPS can cost upwards of $10k, but it’s the same hardware as in a $20 consumer grade GPS)" No, it's absolutely not the same hardware as a consumer grade GPS. And this misses the entire point of why it costs so much.