The particular question in question:
The original question was titled
What site offers the best deal on college textbooks? That is obviously considered off-topic. Rather that voting to close it, I suggested that it be changed to a CW with the title in the link above. My reasoning being that a list of sites selling used textbooks could be useful. Along the lines of "How can I save money on college textbooks?"
I am having second thoughts, as this practice could invite a slew of off-topic questions through this backdoor. Can we allow some of these types of questions based on the idea that saving money is an essential part of personal finance? Or, is this a slippery slope that should just be avoided?