IMHO the dollars should have never been at par in the first place. You got spoiled with screaming US deals when oil was way overpriced at $120/barrel. As some would say "you thought the party would never end." Those that knew it would end bought hard US assets or transferred larger sums of money into US cash taking advantage of the times.
I do think the Loonie should be stronger and the pendulum has swung a little too far because oil is now so cheap. The bottom line for me is I can not cross the boarder and vacation like a king in Canada, why do you think you can come here and do it? That says to me that the dollars are getting very close to each others true values. For those that are staying behind, you may want to consider that and plan accordingly. If you started snow birding when the dollars were at par, that lifestyle may never happen again.
Consider something so simple as the cost of a box of wine north and south of the border. In a fair market our dollars would buy the same amount of it regardless which side we were standing on after the exchange rate. What is it? $40Canadian vs $12US, if that is true, that box would now cost me $28.47 of my US money to Canadian. Doesn't seem very fair to me. :E