BUY ON AMAZON. It's like 70 bucks, the same thing, you just type in the code they send you in a box. I actually need to do that soon to renew. I was holding out to see if any of the features of MM became free at this event, but I guess not.
MM is great. It started off pretty crappy, but It's been fairly solid since then. Keeps me all square between my Mac, iPhone, and iPad. Pushes mail, calendars, contacts. Hosts my website (even using a top-level domain). Only downside to website hosting is it can't run server-side scripts, so I might move on from that soon as I'm currently redesigning my site to something a bit more complex. Email aliases are really great too, as you can make up to five extra account names, and all the mail comes to your main inbox. But it's great for when you don't trust sites, or want to post something on Craigslist temporarily, and don't want to get SPAM. You can delete the alias, and poof, SPAM gone!
Find my iPhone is nice, even for when you just lose it in your house. You can set off an alarm that will help you find it, even if the phone is muted. Gallery is nice for throwing together some quick photo galleries for family. Bookmark syncing is nice too, especially in class when the prof mentions a site, I can quickly add it to my iPhone and it shows up later on my Mac. The MM website has saved my butt a few times, especially for when I backup important files to my iDisk and need to access them remotely. I've also used my iDisk to host large files, which I can set a password on and give to clients to download the zipped design packages I've done for them. Nice and surprisingly professional.
Bottom line: Totally worth $70/yr, or $5.83/mo. That's nothing. Like a coffee. Only far more useful, even with a kind of stupid name. Love it!