Earlier quoted context omitted.
$172,000 per year is not a yacht level income. It's a good salary (some might say great), but you're not going to have a mansion and a yacht.
That depends on what you mean by "mansion" and "yacht." Outside of NYC and the Bay Area you can definitely afford a mortgage on a nice house, two good cars, and a decent-sized sailboat and manage to feed a family of four on that income (assuming you don't send the kids to private school).
http://montreal.kijiji.ca/c-housing-house-rental-ST-COLOMBAN...
Small mansion 1 hour commuting distance from Montreal, $400,000
Let's look at craigslist:
http://montreal.en.craigslist.ca/boa/2116842083.html
35' cruising yacht, good condition, $49,000
This is certainly doable on $172,000