Unless you have insider knowledge of where some major public project is set up and preferential access to capital so you can frontrun those developments I honestly don't see how flipping makes much if any profit in nominal terms.

Another is if you were able to prospect land that has minable resources, if you're sitting land with some kind of commodity then sure you can mine it or lease it to a prospective miner

I think land as an investment can also make sense if it's your place of business, your farm, your guest house, your business premises, it must be a functional piece of land that is the basis of economic activity, otherwise it's just a utility for you to comfortably sleep, wash, poop and store stuff

I think residential land is way overvalued for what it provides, how are you taking x10 leverage on variable interest rate over 20+ years and still having 1-5% loss on repair cost, taxes, etc and generating no income to offset it and the CAGR doesn't either in real terms, its a shit deal