Don’t want this lost in the comments section (which you should really read – all the intelligent people are there, as opposed to this idiot) so:
IS mentions assessment ratios by zone. Here are some by price range, based on 419 sales in 2009.
Under $500,000, 0.96; $500,000 to $750,000, 1.18; $750,000 to 1M, 1.21; 1M to 2M, 1.27; 2M to 3M, 1.30; 3M to 4M, 1.43; 4M to 5M, 1.36; 5M to 10M, 1.44; over 10M, 1.86. Assessment ratios going back to 1970 show similar assessment disparities by price.
Update: Whoa! Pete, I hope you understand that “this idiot” refers to me – just struck me that it might be misunderstood. Thanks very much for your data. Seems like our next assessment can use some tweaking.