I....must....resist.....the....urge.....to....buy....more....Amigas!
The A3000T is a highly prized model, some would even say it is the best Amiga ever manufactured, so it should bring a good price. It will help if you list the location, and exact details of each machine. Are there any expansion cards in the A3000T? Does it have a full complement of RAM on the motherboard? Is it clean and shiny white or beige, or does it have a lot of yellowing due to age and sun damage? Are the keyboard and mouse included? What about monitors? Is any software included? What Kickstart ROM is installed in the A3000T? What size hard drive is installed?
As you can see there are dozens of questions that need to be answered to determine the value of your equipment.
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