I got a loaner P85+, still at the old pricing. The delta was more manageable. the new pricing has definitely changed things, but then again, you're not buying an early production car anymore, you are buying one that has had a lot of bugs worked out and various upgrades, some improvements in hardware not even known by us. If I had to start from scratch it would be a tougher decision. The S 85 with coil suspension is a very attractive value proposition so I can certainly understand that your impressed with it, congrats on your decision!
I was disappointed with the P85, particularly the one we got... an early production with lots of issues. at it's best, the handling was sub par, particularly on rapid acceleration. Tesla really nailed it with the suspension/handling improvements on the +. Everyone has to come to their own conclusion about where their sweet spot is, for me, I could make a pretty good argument for going all the way and getting the P85+, IMHO, it's what the P85 was meant to be/should have been. With all season tires and a front end alignment, it's quiet enough and handles like nothing else I've ever driven. I guess the question at the end of the day is, what flavor of perfection is right for you...