If you choose to go with the Y-C you will not regret it. One of the things that has not been mentioned so far is the fence movement. The older design was rack and pinion and I had the 6" version of that. I liked it a lot. There was precious little to tell between it and the Delta version that FWW gave its "Best Buy" award, except the builit-in mobile base which swung the deal for me.
Well, as is almost always the case, "I should have known better" when I bought it 'cuz over time I just had to have the wider capacity of 8". Last December I scratched that itch. The new fence design has a movement that is silky smooth and even more impressive than the old one. What's interesting is that it is the same fence on the lil guy now as well. I am not so obsessive about the bed that I wanted to know within a thousandth of an inch how flat it is, but I did pass over it my Lee Valley straightedge which claims to be within .001" of true. I could not find a crown or a dish over the entire length which is pretty impressive in my book.
BTW - the $599 deal was also sweet and I bet if pressed, when you call Wilke they could find a way to make it happen for you. The shipping was originally quoted to me at $75 to N. Ral which impressed me, but when it actually arrived it was closer to $90. Still, for delivered to the house and into the shop I think was a pretty fair deal. Make sure you have the truck driver wait while you unpack it and examine it for damage. Once you sign for it and he is gone you are going to have a tougher time making a claim.
As for dealing with Wilke - well, they have been great on two occasions so far and I have nothing but praise for them. Good luck with your purchase and I hope you have fun making lots of sawdust ...
