That's why I mention sslstrip (check out the presentation - it's scary) and overall lack of SSL on the internet. To provide some anecdata, my browser window currently has 8 tabs open right now.

Those that support HTTPS: news.ycombinator.com; twitter.com; www.torproject.org

Those that don't: cryptome.org (!); zzaper.co.uk (the Vim tips article from a few days ago); forbes.com; vimeo.com; nytimes.com

End-to-end encryption would be great, but the internet at large just isn't there yet in terms of both HTTPS support on most sites and safeguards against SSL tampering.