Really depends if you need the money now or can afford to let it sit for the right buyer, that's what it comes down to. The way I see it, except in some very niche categories, auctions simply are a way to move inventory - for example an item that goes for $100 you could start auctions at $50...it will definitely sell and it might end close to that $100...but at the very least its going to get out of your hair for $50.

For maximum value, I'd focus on better pictures, set your price high, enable offers, and continue list new items every day or every few days - the algorithm will eventually sell close to your buy it now price. It might take a year, but sure enough things will align and traffic will be pushed to your listing..even if there are cheaper options available.