Not following you buddy.
Looking for a spreadsheet that compares retail broker fees
I'm not selling anything
to compare fees only and focus only on that is fatal. depending on how you trade, but no matter cheap is not a part you put on the space shuttle or have made in china.
so lets take a hypothetical broker and we will call it "ic" and ic has the cheapest fees and commissions but require higher margin and will margin call you at any rumor of volatility. also you have to use the ic software and the ic data feed that is pure shit at best. then add to that ic has these outages all the time but you don't care right cause what a deal on those fees and commissions.
next comes a broker named "id" and what you know learned from the gullible fools of ic - id decides to pay people to trade, gee wonder what could go wrong there?