So I asked this question years ago when we were looking at buying in 2011. Yes the points had dropped per, and the Can$ was par.
I received all the same responses that everyone has given so far. Yet I went and purchased 2 contracts. 200 and 220. For the 1st bunch of years we just used our 1 contract and the other covered the dues and part of our park tickets. So I never paid out of pocket for our dues for approx 7 years. We went on 1 or 2 trips every year and were able to stay 5-7 days each time. So there alone going against discounted rack rates and not paying dues, we were in the black.
Now our girls are older, we are now using 1 and 2 bdrm, going longer, so we are using both contracts for us. I now look at dues as my rack rate. If I have a few points left over we rent them out to offset dues.
If I stayed with just the original intent, I might have bought more points and rented out more to cover full cost of our trips each year, it is doable.
I have not run numbers lately, with the Can$ at .73 it defiantly is not worth it. The plus side is if ever I need to sell, we are selling at more per point than we paid, plus the exchange rate benefit. If this were to happen, it would be very expensive due to my wife divorcing me....lol