How many AVG programs do I need in my computer

I have several subscriptions from AVG. I still receive warnings very often that my computer is in risk, that threaths are gathering around my computer.

Is this only a trick to make me feel afraid and make me buy one more program? Or are the existing programs designed to solve enough problems so there will be new needs which only can be satisfied with one more AVG program?

I understand of course that the threaths are many in the cyber space.