Re: Low-balling, how low is too low?
Not to be redundant but auctions are and will always be wholesale marketplaces, where often you'll find 2 private buyers butting heads and you will find retail results [note the $6200 pawn shop LNG this month], and sometimes higher. If you're using ebay to price you're looking at what typical private to private sales bring, not what dealers should be pricing at.
And most dealers want to get 100% profit because they beat you up so hard on the trade value, or outright purchase. We've all heard 1000 stories of GC offering $300 for an $800 guitar. If I can ever buy something I can double, or triple on, it was a buy it now I caught first, and I'll get a couple a year. Every now and then something will sell for 1/2 retail on open bidding, and I'll get a few of those a year also [keep sleeping boys]. But more typical is 30-50%, which still beats margins on New guitars, but also require thrice as much work.