The Taco Bubble?

Never thought I'd be referencing Jonathon Lansner's real estate blog found at the OC Register's site but today he is talking about the taco bubble. Lansner's proof that there is a taco bubble is Del Taco's offering of its regular tacos for 49 measly cents. There are some funny comments left on the blog entry as well. If anyone can send me a picture of a taco bubble I'd be much obliged and might even post it here.