But the main reason that any programmer learning any new language thinks the new language is SO much better than the old one is because he’s a better programmer now! You look back at your old ugly PHP code, compared to your new beautiful Ruby code, and think, “God that PHP is ugly!” But don’t forget you wrote that PHP years ago and are unfairly discriminating against it now. It’s not the language (entirely). It’s you, dude. You’re better now. Give yourself some credit.
— Why I switched back to PHP after 2 years on Rails (thanks Contrived Chaos and Dalas Verdugo - and yes, that was me who removes unnecessary numbers from blog-post titles)