Would you still pay $10k or more for a turntable not full analog front end these days ?

Of course. However why not listen to both sources?

Yes, why not ? But it is also a matter of funds distribution. I am horrified by $25k streamers but not by $25k tables.

The answer will depend on if you already have a substantial record collection. If I was starting out today with no records, I would not be investing in a turntable. Cost of new records has become a barrier to entry for new vinyl enthusiasts.

When a $10k streamer closes the involvement gap with vinyl I will buy one.

Yes and no, respectively. I measure the value (to me) of my turntables, cartridges and phono stages in terms of pleasure, not just sound quality. There are recordings that I have on vinyl, CD, and SACD, and it's nearly always the vinyl I choose. But that's just me, and I don't suggest that it should be true for others. Your job is to do what gives you the most pleasure.