$50 more for 16GB is a horrible delivery on product value when factoring in the profit/part and what the cost is for a 32GB module vs a 16GB module... Consumers are run over roughshod in that respect. Of course, Google is not the worst offender - some companies will charge as much as $100 for the same memory difference (yeah I'm calling you out, Apple!).
But consumer end value is all about the value you personally place on it. If 16GB won't cut it, then it's well worth it. Gotta be able to do what you need to be able to do...