I can get the prices for goods online, and then get them delivered to my house. Getting the CPI more often seems entirely feasible to me if we really wanted to.
Maybe. But online isn't the only place to buy, and to arrive at a single number they do all kinds of adjustments to account for seasons, locations etc.
If you are right, I'd guess the cost benefit probably isn't there regardless.
If you are right, I'd guess the cost benefit probably isn't there regardless.