Why most prefer plastic double -glazed windows

Plastic double -glazed windows have long ceased to be a curiosity. But all, there are still people who, before the start of winter, stock up with cotton, tape and glue their old, many times painted windows, spending a lot of time, effort and patience on this. Perhaps it is worth spending once on the installation of high -quality window structures, once and for all forgetting about mold, which is formed from excessive moisture on the slopes, and about the boots, and about the cold wind blown in the gap?