I want to buy, seems a bit crazy (without more data) choosing between the offerings. DDR4 seems really pricey atm (SSD is covered) so my hand may well be forced downwards on the CPU to a 1700, especially as cooling is included. Without more detail of what the 1700X and 1800X brings to the party "real world" I'll probably sit out the first wave.
It might be a smart play to get the DDR4 earlier? Advice on best value ryzen friendly/tested ram would be great. I had my heart set on 2x16gb as a minimum, £300 seems so high though...