People will likely buy any for bragging rights cause most will never use them fully, ray tracing is a new thing, so expect 3 to 5 years to make a wide use for it, people buying a rtx 2080ti to play cs go hehe, is like when they buy an iphone for $1200 for whatsapp hehe, most of them have more money than sense and most want bragging rights to say to their friends, they have the best tech hehe, even though they will never use 5% of its peak performance, it's amazing to see how idiotic many places/people of the world have become.
I'm not buying any, will wait for 7nm this or next year from amd, although i always prefer nvidia for gaming, looks like i will side with amd on this one.
Also about prices, they increased $100 on everything and a plus another $200 on the rtx 2080ti, the gtx 1080ti launch price was $699, and now $999. They are only releasing the rtx 2080ti because 12nm is already old tech, they could not release it next year since amd will release a 7nm. The crypto mining boom spoiled nvidia and now they want money and they want fast before amd releases a 7nm.