The 3a was introduced in 1996, making it a 25y/o design. It cost $2795 at that time, which is $5008 in April, 2023 inflated price. According to the used equipment pricing model I have developed over the years (based on 100's of buy/sells of gear,) it should have a price somewhere in the $750-1250 range as of today. Perhaps a little more if it is 5 years less old and in great shape.
Hope this helps.