But you pay interest on your leverage. So if your asset isn't appreciating faster than inflation + your interest rate then I don't think you're actually realizing any gains.
[1]: https://en.wikipedia.org/wiki/Home_mortgage_interest_deducti...
Even still, though, I am taking on a risk of not being able to sell the house if I ever change jobs. It's appreciating rapidly right now, but everyone knows this can change in months.