You say that's how other markets work, but I can't think of any other market where an increase in the price of something you already own can make owning it unaffordable. If I buy stocks, or gold, or a car, and it gets more valuable, I'm not taxed until I sell, right? Does the same argument hold for those?
I'm referring to other real estate markets in the country.
Also, in this case, if the price of your home appreciates, it is likely the price of other homes appreciated, so your gain may not actually amount to anything (particularly after realtor fees). Likewise, you are taxed every year on real estate.
