We here on the Canadian side of the Dis board also went through this same discussion at the beginning of the promo. I did try to find that thread for you, but they changed some of the archived stuff not to long ago.
Snowwark -maybe you can help with a link?
Anyways, the just of that thread was:
1) You can order them from CRO and pick them up at the ticket window at WDW- they will give you a confirmation number on the phone & charge your card.- U.S $ ( this is what I did)
or have them mail as i12go2wdw did.
2) You can buy them at The
Disney Store (keep in might those expiry dates), they charge you in Canadian dollars and because it's Cdn the exchange is fixed so sometimes it is cheaper.
3) CAA sells the tickets at U.S. dollar price so it will depend what the exchange rate is to know which is the better price. And sometimes they include a character breakfast ($19.99 US$savings)
4) Holiday House Vacations (through travel agents) also sell OFFICIAL Disney Tickets, which usually/but not always include a breakfast and are usually CDN$- but they need to be ordered so timing and expiry dates again must considered.
I think the difference between any of the options is within the $20. per ticket range.
I know that's a lot of info & and I've not given you a straight answer but I hopes it helps. Have a great time all!