As another Canadian on these boards, we've watched our loonie slip in value versus the American dollar, but for us, its a double edged sword.
Travelling to the USA costs us more than it did in the last few years, period (but its still not as bad as it was in when we made our first trip in January 2009).
The company my husband works for, however, generally gets paid by its customers in US dollars as most of the product they manufacture is sold and shipped to American customers. That means a higher profit sharing cheque every year, and job security. For their employees, that means luxuries like Orlando vacations. When our Canadian dollar exceeded the value of the American dollar for a little while back in 2011 (I think?), they profitably took a serious hit. Good for travellers, not so good for some industries.
With our dollar currently sitting at about 80 cents US, its making us much more concious of picking good value choices for our Florida trips. As a result, we opted for Universal annual passes: going "all out" with the Premier version (giving us park to park access, each a free ticket to Halloween Horror Nights, free valet parking, free after-4 pm Express Pass, in-park dining and shopping discounts, significant hotel savings, 8 free bottles of water each, no blackout dates, and more) was just a shade less than a 10-day Disney ticket with park hopper. We will get three Universal-centered trips in before these passes expire....which breaks down to just $144 per person in theme park tickets per vacation. For us, that's good value....and offsets the fact that we are paying 20% or more in exchange.
Ditto on accommodations. Our one bedroom villa at our offsite resort (which offers more amenities than their Disney counterparts) was $419 including all taxes and fees for our 7 night stay in May. The cheapest one bedroom villa via Davids points rental is AKL at $2338. Right off the bat, that's a $1919 savings in USD.....or about $2400 CDN.
Gas is significantly cheaper in the southern US, as is dining out (Disney restaurants excluded), so those costs are a non-issue. Even wih the exchange rate factored in, both of those expenses are still a good value as compared to home.
So....while the strengthening US dollar won't affect our family's plans to travel to Orlando (at least not in the short term....we have May, October and December 2015 already booked, and April 2016 in the planning stages), it will definitely affect how we spend our vacation budget.