Board Thread:Questions and Answers/@comment-95.144.26.215-20150718210938

I'm on level 45 & I'm focussing on getting 100,000 wood, to buy the stock Exchange, in order to reduce the cost of other things.

At the moment I have the option to buy: A train slot - with materials A train slot - with gems A 3rd rail - with materials A 3rd rail - with gems ... as well as other items.

Question: If I buy a train slot with materials, what happens to the other options? i.e. Do I lose the option to buy a train slot with gems, or will the gem-price increase, or will that option remain at the same price? + Does it affect the availability, or the cost, of the 3rd rail options? 