FINALLY 64 bit Illustrator!
Did require me to login to my Adobe account right at the start for a non-trial install. I'm guessing you coudl install as a trial as well and then just activate it later as well.
$29 mo to stay current and access to the rest is a no brainer. It's like buying them a few drinks a month. Where would we be if Adobe started failing? If it's still not justifiable look @ it this way... You'll only really have to pay through December anyway.
$50 per month is nothing. One hour of design time pay for that. Even if they raise their price to $60 or $70 per month... what's the big deal if you can pay for the monthly fee with ONE JOB??!! It's cheaper than business insurance (at least for me!!), and it ensures that I ALWAYS have the latest version(s).
You are supposing that a disk version will be available for CS7. I can see no good reason for them to leave open a loophole that allows pirating and brings them less income anyway. Everyone is going cloud even MS office.
Cloud pricing is great for a freelancer or small agency who doesn't have the cashflow to make big spikey yearly purchases of software.
As far as comparing prices for disks versus the cloud......With disks I have to haul around a laptop if I want to work in another location.....As far as I know, with the cloud I can use what ever computer I happen to be working on at the time......I can be at the cottage and have all my programs and all my files.....
In addition we are now seeing the twilight of DVD as a medium. With programs creeping into the tens of gigs, there is no new medium beyond that other than the internet HD.
I remember getting a program with about 30 diskettes and spending the afternoon swapping disks. Eventually even if they do keep the single purchase model, it will have to be downloaded from their servers.