Grouper your providing a great example of tu quoque. One can make statements of standards and live by totally different standards, and that does absolutely nothing to take away from the logic of their standards. I can say suggest to a new member that they should do 10% water changes every week, while only doing a 5% water change every month. Pointing out my failure to follow my own advice doesn't change the merit of my advice. At the same point, there are often other facts that are meant to be implied by tu quoque statements which are valid in an argument and often they are the intent of the debater, just not properly explained. In your case you seem to just be arguing that we all use crap so why would we want any better! I'd argue that we all have choices and for each of use we have a limited budget and as we can't afford only the best for everything, we make compromises to attempt to best meet our own standards of living, even if that means a poorly installed leaky roof. Ignorance is a major factor in many of our purchases!
