The following interpretation is simply that...an interpretation. The actual relevance of that dream could be simply random firings of cerebral synapses. It is for entertainment purposes only and should not be considered to be applicable to the real world in any way...unless of course you believe in this kind of stuff
The dreams of PunkofNice are one. The town or city is your life, it is reflected as both encompassing and vast, small and confined. It is the measure of yourself at all stages, from childhood to the present. The shop is a reflection of your search, a search for the unknown, a desire for answers to life's questions. The shop fluctuates to an open market, a cavern, signifying the depths of the questions you seek the answers to. The comic books, Spiderman in particular, are the purpose of your questions. They are a reflection of an easier time, when life did not present so many obstacles, so much confusion. Your search is for that which will bring you happiness and comfort just as Spiderman filled your life with awe and amazement, you continue to be intrigued by that which your life currently lacks. The "generic" nature of the covers is the muddled nature of your quest as it still remains undefined and nebulous. The adjustment in the search to include other comics signifies that there still remain underlying questions, not as complex or encompassing as the others, but still relevant to your overall search.
Alternate interpretation:
It is a dream about searching for comic books.
SOP