Could someone please provide me of an estimate of the cost of historical tick data (Level 1 quotes), for commodities and stock futures, as well as a live feed. Which venue should I choose? I've looked up IB and esignal. IB doesn't provide historical tick data, and their live feed is like 500$(initial) + 100$ monthly. ( But don't know how good) esignal seems to be too cheap, I am not sure of the quality of the feed which I can get.