You'd have to pay 30% on each purchase. And if you sell your home now, you wouldn't have to pay capital gains taxes on a profit of $250,000 ($500,000 if you're married) but under the FairTax, you'd pay 30% on the gain when you spent it. And 30% on the original purchase price when you spent it.
Sounds great for you!
Nothing is taxed that is not your own free choice of consumption.