Thats very good, to be fair the previous owner probably had not touched it for years and did not value the item.
However it sounds like you very much love the machine and well done!
I got my first A1200 running this year, I never had the money in 1992/93 being a 12 year old
but at least we had a A500+ but I always dreamed of an AGA machine.
If you stick a HD in there and get WHDload, it is a wondeful gaming machine still.