I don't want a 2 in 1, the idea of a tablet is you've only one thing to worry about and it's easy to pick up and put down. I don't want to arse about with a flimsy keyboard connector that most likely has a MTBF of <10, if I do want a keyboard (most unlikely) then bluetooth will do fine and it has the great advantage of working with other devices that use bluetooth.
Poor old Microsoft, still stuck in the 1990's.