Regarding the utility of this list: Seems to me that this takes much of the work out of one of several aspects of comparison shopping: the rough cost comparison. From here a user can target those shops that appear to fit the range of their budget. Often cost comparisons between shops can be one of the more onerous tasks, as many shopping systems seem to intentionally make it difficult to easily compare prices with their competition. A list like this does the heavy lifting in that regard and leaves behind what I consider the more interesting and engaging parts: determining the best value within the budget.

I think this was very nice of the OP and it will be a loss to the community if and when this list is no longer updated.