Sponsorship of an event or even developing promotional programs in conjunction with a seasonal event (Halloween, Summer Holidays) are both sound and proven marketing tactics. I usually don't bat an eye at such programs as they have become part of the consumer landscape.
Today, however, something landed in my inbox that I'd like to share. Below is an actual piece of spam I received from a moving company here in London, Ontario:

On a day when we're supposed to remember those who died for the standard of living we have today it seems wrong to attempt to satisfy a marketing objective.
Honouring Remembrance Day by increasing market share and offering special incentives? Call it a fall promotion or perhaps a pre-winter event, anything but associating a promotion with Remembrance Day.
For more information on Remembrance Day in Canada please visit: http://www.veterans.gc.ca/eng/history/other/remember