Last February RIM launched the “BlackBerry TradeUp” program in Canada. Those eager to get a new handset could find out the value of their old BlackBerry and get up to $170 to trade up to a newer device. The selection at the time was limited but now RIM has opened up the program to include the recently launched BlackBerry 7 devices: Bold 9900, Torch 9810 and 9860. For those sitting on the fence it might be something to consider. To entice you further, RIM has also offered up a $100 prepaid MasterCard for good measure.
More info here at BlackBerry