Basically. It's pretty nice job that pays more than the bills. I think of things from a portfolio management point of view. My job is like bonds/fixed income instruments. Steady and sure. My trading is like higher risk asset classes. You need both in a portfolio.
I bought one already. That's why I was able to make the good returns lately. The monthly cost of the scanner is a pittance compared to the trades it has scanned and helped me identified. Obviously given an inexperienced trader the same scanner, I'm sure the results will not be the same. Scanners are only part of the equation. You still need to know how to trade(entry, exit, risk management, position sizing, etc.)