The benefit to custom software is the simple fact it provides features off-the-shelf software doesn’t. Designing an application responding to your personal needs in implies an increased level of efficiency/performance in your trading.
If you have a software application designed to increase efficiency or address an personal need, the cost of it is offset by the promise of increased performance. If your need is unique enough to warrant for custom software, then customizing a solution rather than settling for an off-the-shelf application becomes a smart course of action.
