Yes, the replacements for many models of the Pixma line started showing up in mid Septermber. If you want one of last year's models, don't wait. As you've found out, they are getting scarce. Try eBay. Canon has changed the ink tanks for the new Pixma line, and the 3rd party suppliers will take a month or two to clone them (perhaps longer as there may be some tech in the new tanks).
.bh.