Nah...I have to stick with this statement! :) Mainly because, most webmasters who think they have a quality site, won't contact the webmaster of a PR1 site, requesting a link exchange. Is it wrong? Who knows? Is it fair? Who knows? It is all a part of building and maintaining your own web business, and webmasters tend to choose to focus on the stats, quirks, ideas, etc., that comfort them.
Hey...I know what that's like, Martini. I traveled that same road back in 2002. When I developed my site years ago, I concentrated strictly on quality content and never asked anyone for a link exchange, or an IBL. Over the years, my site's popularity has risen and so have the tons of IBL's.
Either way, this is what many novice webmasters (not calling anyone here a novice!) have a problem grasping. They feel that if they join link exchange programs, or simply reciprocate dozens of links with other sites, they'll eventually get enough magical IBL's to boost their PR and search engine results. What many fail to understand is, the focus should be on quality and content, and all of those perks will eventually come...(with other hard work, of course!)
But the only reason I've ever emphasized high-PR sites is because I wouldn't recommend someone linking to a low-PR site.
Sure.... it may have quality content, but it is at PR1 for a reason. Could it eventually be a super-duper, 2-million pageviews-per-month site?
Sure it could be, but you can't predict the future and who knows where this PR1 site will end up.
A PR8 site is already established and probably won't lose its rank in a day, week, month, or even a year.