Of course all economies are dependent on supply and demand, BUT a lot of factors influence the nett eventual outcome of sales of inter alia musical instruments, cars, gold coins, platinum bars, yachts, house goods, etc.
So, to name few factors:
1 Is there a demand for pedal steels; new, used?
2 Are there a lot of newcomers and/or are there a lot of players upgrading or just buying another one?
3 What is the PPI (Production Price Index) in the USA economy, UK, France, Germany in a certain timeslot and are they comparable? Are the 90's the same as the 2000'S?
4 What is the unemployment and buying parity rate in a certain timeslot?
5 How many builders can supply the demand, etc?
I have just read an international blog on violins, new and old and it seems the market is doing well there.
I know of somebody from here going in a few weeks time to collect a custom built viola in Brazil. She would not disclose the price.
I read there are only 10 violin builders in Moscow but more than 500 in Cremona, Italy. That also influence prices.
Ordinary handmade violins start at $10 000, but mandolins less so, fortunately.
So, what is a reasonable price to pay for a pedal steel, new or old?
I dont know!
All I know the South African rand is very weak against the dollar, pound and euro. We miss very good steel deals.

Sierra S10, Stage One, Gibson BR4, Framus, Guya 6&8, Hofner lap, Custom mandolins, Keilwerth sax.
Roland Cube 80XL, Peavey112-Valve King and Special, Marshall 100VS.