BLUF: $250 in "above average" condition, 100% complete, fully working. Read explanation below for caveats and further understanding.
Regarding pricing support of these types of woodrail games for future reference as they are unique due to lack of history of titles and paperwork due to pre-WWII status. Ebay is about the worst pricing source imaginable, especially in this case. The owners nearly never know anything about the titles.
Any 1930s title (legged or tabletop) where any owner is asking $500 or more in price should be a properly restored game, not a project, missing parts, or cosmetically poor. Notice, I did not say "fully restored" or "high end restored", as these are a different category of games altogether. This is rarely the case when these titles go up for sale, and the owner clearly knows it, but still tries to make a pitch.
Games of this nature are more apt to end up donated free to an antique shop or in a garage sale when the owner keels over clutching the plunger. If the game is really lucky perhaps a museum.
There are only a few titles even fully restored that closely reach values exceeding $1000. These titled can be inquired about, if interested. The are only due to historical significance, not necessarily rarity as at this point all these types of games are all "rare" anyway.
Considerations for condition of machine should be tempered based on age. An "excellent" machine from the 1950s is not the same as the 1930s, as the wood will be more dry and brittle, paint more cracked and flaking. Many times the lacquer is extremely yellowed with age. Sunlight and moisture are the common enemies along with time.
Average value of the games listed above in "above average" condition comparative to the same standards of most electromechanical games of later periods meaning 100% complete, and fully working is very close to $250. Poor cosmetics can drop the game value to nearly $0.
Anything more than what has been provided ($250) as a benchmark is overreaching expectations based on owner nostalgia or extreme wishful thinking.
"Don't bite on owner hype."