My best guess is your retailer is not going to offer you a high trade in value for your equipment regardless of what you buy. You might ask your retailer if they would accept your equipment for a consignment sale (fees could be 10-20% of sale price). I also do not feel comfortable selling my used equipment on Audiogon. I have used both retailers listed below to sell my used equipment with success:
Echo Audio
Sometimes they will buy the equipment from you or accept it for consignment. They are very selective on what they accept and I suggest you call them to discuss.
https://echohifi.com
The Music Room
Depending on the audio used market, they might pay cash for your used equipment or accept it for consignment. They will tell you if they feel your equipment will be hard to sell. Once you agree on terms, you ship the equipment to them and they handle everything.
http://www.tmraudio.com
Consignment sales might get 50% of retail minus the fees charged plus PayPal, etc fees. The price you get really depends on the brand you are selling and how marketable it is. I sold a well know interconnect cable and was luckily to get 30% of list. The successful selling of used audio equipment depends on the brand, model, condition and age. Timing is also important and you cannot be in a hurry. For example, it took me over 5+ weeks to sell my Luxman 590ax integrated amplifier and we had to lower the price. On the other hand, my Ayre QB-9 DSD DAC sold in 2 hours since it was in high demand.
Echo Audio
Sometimes they will buy the equipment from you or accept it for consignment. They are very selective on what they accept and I suggest you call them to discuss.
https://echohifi.com
The Music Room
Depending on the audio used market, they might pay cash for your used equipment or accept it for consignment. They will tell you if they feel your equipment will be hard to sell. Once you agree on terms, you ship the equipment to them and they handle everything.
http://www.tmraudio.com
Consignment sales might get 50% of retail minus the fees charged plus PayPal, etc fees. The price you get really depends on the brand you are selling and how marketable it is. I sold a well know interconnect cable and was luckily to get 30% of list. The successful selling of used audio equipment depends on the brand, model, condition and age. Timing is also important and you cannot be in a hurry. For example, it took me over 5+ weeks to sell my Luxman 590ax integrated amplifier and we had to lower the price. On the other hand, my Ayre QB-9 DSD DAC sold in 2 hours since it was in high demand.