Based on the context and the answer, generate a question. 

Context: Our generator is almost but not quite exactly like this one . So I was driving home this afternoon and spotted a big hand - painted sign by the road outside our local Home Depot : " Do you want a generator ? Come inside ! " Nah , I thought , too good to be true .

Answer:

Power generation systems were almost impossible to find in my area .



What may be the reason I thought the sign was too good to be true ?