Why don't I buy the Pro version? Because I'm out of work and can't afford it. I was told "Avast! is free". It is, but it like someone gave me a car with only three wheels and told me to buy a new one if I can't make it go.
No, I do not agree... :'(
Both versions of avast (free and paid) has the
same capability of finding a virus. This is for free... Other features no. I think the company is being fare. Quite fare! I think avast! is the best free antivirus. Better, I think the free version is better than any other not-free!
avast! car in your example has
four wheels but not a radio or CD player... Oh, that's only my opinion.
Also, the free screen saver would wipe out a background that I like ("earthlights" from NASA). But I'll accept money for advertising Avast!.
The avast! screen saver will work with a lot (almost all) screensaver available. You can configure it to 'lauch' yours, I mean, avast! will call your own screensaver and run a scanning while that.