The title is a weak guide to price in this category. Completeness is a strong one.
Price the state, not the title
The same game, loose and complete, can be a long way apart. Decide which of the three you have — sealed, complete in box, loose — before you pick a number, and put that word in the listing title.
Where to start
Loose and common: start low, run fast, use them to build the room.
Complete and sought-after: a low start works when the room is busy and costs you when it is not. A reserve is the safety net.
Sealed: start higher and expect fewer bidders. This is also the category where a buyer is most likely to ask a question before bidding, so leave room in your pacing for it.
Lots
Loose games sell well in platform lots — a box of one console's games, counted and described. Keep the sought-after title out and run it on its own.
Consoles
Price a console on whether you have tested it and on what is included: controllers, cables, power supply, memory card. Each missing piece is money the buyer has to spend before it works.
Questions people ask
Do I need to grade a sealed game?
No. Grading exists, it is slow and it costs, and for most games it is not worth it. Say it is sealed and ungraded.
How do I price something I cannot test?
Lower, and say untested clearly. A buyer paying untested prices is not disappointed by an untested result.
Should I split a console bundle?
Usually yes for sought-after games, no for the cables and controllers. Nobody bids on a power lead.