Land Could be the Best Investment for the Future

By 2030, researchers estimate that the market for development will be around $25 trillion. This is more than double what the US market currently is. If that is true wouldn't be great to invest in land purchases? Buy land now for a decent price and sell it for triple what you paid for it 20-30 years from now. To me that sounds like a great trade off. I think that there are going to be hundreds of people that will benefit from this potentially going market.