I am new to the BookTrader. Figured I'd spend some time learning it because of it's ease and quickness of creating orders (day trading) with one click of the mouse. I am subscribed to the basic market data plan. Can somebody give me some insight into the Nasdaq TotalView-OpenView data subscription? Would it be wise to spend the extra $15/month?
I would work the opposite way. I would open TWS and start looking for the tickers/instruments I'm interested in. If I don't have the appropriate data subscription for that instrument will TWS tell me so. It will offer the choice of looking at delayed data. Or will offer me to subscribe to that data. This ensures that I only pay for the data which I'm actually interested in. There is no need to buy subscriptions to a whole bunch of data if you don't use it.
Most of the stocks on my watchlist below the level II quotes there is a message telling me that that there is additional data available: Island, Bex, Arca, Nyse
Those are the names of the individual exchanges. Probably you have selected one, and the software is telling you which other ones you could select.
IMO anything other than top-of-book data isn't worthwhile for trading with manual human intervention.