The massive dip in treasuries since we went off the gold standard has made money so cheap, and has inflated values so far, that eventually we should be due for a correction due to the price of capital rising.

You'll pay a balance transfer fee if you want to take out cash rather than do purchases but at ~3% the money is still basically free once you factor in inflation.

Since I'm probably going to be using 100% financing it seems like cash on cash would be a bit inflated and not the best thing to look at.

If you have a mortgage at 4.5% you are either losing money from the property every month or through inflation.

Get educated on the basis of finance, time value of money, interest, inflation, the mechanics of stocks, bonds, commodities, , real estate, different financial vehicles like IRAs, 401ks, HSAs ect. 

In a market where there is a hot development flux the prices are typically inflated for existing units.

Let him know that the extra money is to offset inflation, wear and tear along with rising taxes.

Intense competition and inflated prices. 

need to account for inflation

It's perhaps great for investors who want to see if some unwary newbie will come along and pay the inflated price.