If I buy Mountain Lion can I downgrade to Lion? Without purchasing it? I don't have a Lion license and I'm currently running Mac OS X 10.6.6 (Snow Leopard).

If I buy Mountain Lion, can I downgrade to Lion?
If you buy Mountain Lion, your computer downloads an installer for Mountain Lion from the app store. If you were somehow able to buy a copy of Lion later on (which Apple does not seem to be selling in the App store), you could install it on your computer ("downgrade to Lion"), but buying Mountain Lion does not get you access to such an installer.