So much arguing on the internet over something so silly.
I Googled around just a little to see if there might be some way to burn a boot disc from Lion's recovery partition (wherever/however that's stored), but I didn't see anything helpful.
I say just torrent it if you think it's justified. Buying it on the Mac App Store is obviously the good option as well. Let people continue to be angry on MacRumors and have your problem solved.
Either way though -- I'm recommending to people to burn a bootable disc (or flash storage device) with their Lion image before they use it to install.
http://www.macworld.com/article/161069/2011/07/make_a_bootable_lion_installer.html So now you'll still have that if you need it in the future.