I haven't had much luck - been told that after 30 days of not selling the manager has some discretion, but hasn't ever really worked for me. Usually've been able to get them to throw in a set of strings or two or something, that's about it.
Yes...they have a little wiggle room, depending on the deal. As others have said a lot of it depends on how long they've had it. I get a daily email of new pieces they buy and the list is staggering. What I've found a few times is to double check everything they tell you. I was purchasing a 68 Tele from there they said it was all original. I told them I'd take it and we found the original pickup in the original case. 8/ On top of it, they then wouldn't budge on price so I passed.
I call the store while looking at the ad & ask for guitar sales. Usually they'll go get it & give you details on the phone. I've had them text me additional pics.
Got a free case when I bought my '17 white SG Ltd gold hdwe for $1000 from Florida. Used a CC over the phone, had it shipped to store, no problem.
Lately GC has been all over the place for me. I live close to 3 so jump around looking for used gear and discounts on new stuff. One employee says firm, another one same store haggles. On new stuff some stores give me 15% some don’t. Again could be same store different day. It’s really hit or miss.
Recently got a used Jcm900 for 700$ out the door with tag price 799$. tried to buy something else and they were firm, even on a price that was crazy high. If you trade in you get 15% off, so if it’s new just bring in a useless pedal you don’t use, get some cash and an additional 15% off
I've gotten deals at GC on products that technically had no wriggle room; I've been flatly refused on what I felt were very good offers. Bottom line is, don't ask me, ask them! You won't know until ya try.
I've tried every single time I'm in there and I'm always told no. They don't deal on used gear period. But they had a July 4th sale and told me they'd give me 15% off a used guitar I wanted. So who knows.
Probably not your situation at all. But, I saw a use Hagstrom Ultra Swede on the local GC website for, if I remember $350. New on GC's site, there were $380. Or something along that ratio. So I went in and asked the guy about it. He knocked it down to $300. Apparently they took in the used guitar when they were selling them for $700+ new, but corporate had since reduced the price on them. It was basically mint, so it was a nice deal.