yea I was thinking that too. I was being stingy as it was originally the rear tire which I swapped to the front and visa versa. Not sure if one can buy them anymore, so maybe will upgrade to some marathon plus' as I hear good things about them.
Having used Marathon Plus and Marathon Supreme, I'd recommend the supreme unless you're constantly riding somewhere where the roads are full of sharp things. They're still very puncture resistant but feel much nicer and are considerably lighter.
three new tubes is the rule.
#LFGSSgospel
Edit: new page fail