$100 more for 2x RAM and storage, that doesn't seem like a "ridiculous premium". Unless you mean ridiculous in some other way than the actual dollar amount.
Considering that $100 easily buys you an 8GB so-dimm or an 80 GB intel m.2 ssd at retail prices, I think it is pretty steep for an increase of 2GB of ram and 32GB [ed: whops, 64GB, but still] of storage...