Dear Sphinx
I suppose the reason I have more protective apps than you may think reasonable is because my PC priorities are, more than likely, different to yours.
Let me explain, the most important activity I use my PC for is Internet Banking, not only for myself but for other members of my family as well. So you can imagine how devastated my family and I would be if some miscreant managed to get hold of our financial information and/or our identities. That is why I am protected up to the hilt with protective apps and if my PC slows down a bit, because of all those apps running in the background, I believe it is a price worth paying to protect my family’s welfare.
Now I do realise that other people primarily use their PCs for game and music playing, simulations and other (not so important) stuff. If this or a similar case fits your PC scenario then only minimal protection is warranted.
Peace.
UK Bob
PS. It's good to debate without getting angry