Yes, you're correct about that, but let me flip your question around with this: who cares about asking anyone on the street? Are they the ones willing to pay stoopid money for comics? I don't think so.
Its the comic collectors/speculators who push forth the price increases, and currently, the majority of the movers and shakers are in their 40s- late 50's. They remember the 1980's B&W Boom (and bust), and Cerebus was a huge part of that, second only to TMNT #1. The only reason I didn't list TMNT #1 as the book to be the next Hulk 181 is because its already surpassed it. Hence, my selection of Cerebus #1