Usually the 'backhistory' of data is only of limited value. For use in real world applications in finance, consulting or business decisions, the last data point is usually pretty important.
Think of the price for data on the prices of stocks. If you want to know what AAPL traded at one month ago, that's free, if you want to know what it traded at 15min ago, that's $25k, and if you want a feed which shows the actual bids and offers, that will run you $2-15mm + infrastructure.
Think of the price for data on the prices of stocks. If you want to know what AAPL traded at one month ago, that's free, if you want to know what it traded at 15min ago, that's $25k, and if you want a feed which shows the actual bids and offers, that will run you $2-15mm + infrastructure.