So if any of you enjoy Euro-style economic games, I recommend 1830, which is the base game for all of the "18xx" games. I have played some lighter print-n-play variants in the past but my group finally got around to playing the original 1830 last Saturday and it's awesome. It's a straight forward most-money-wins game with three robust core mechanics:
1. It has the private capital vs. company capital distinction along with the opportunity to buy/sell stock in anyone's company every round (a la Baltimore & Ohio). The buy/sell stock phase determines how much money each train company has to operate and affects stock price, which in turn determines turn order. The first person to start funding a company sets the par stock price, the train becomes fully funded and can operate when 6 of its 10 shares are purchased. The person with most shares decides how the train operates (what tiles to play, how to spend its money, whether to keep income in the company or pay to dividends, etc).
2. It has a tile placement mechanic very similar to Age of Steam and you are competing for certain map locations that provide more income similar to Power Grid and like Power Grid, the cost to get to build to better map spaces is higher, etc.
3. The last mechanic, which primarily drives the game, is the availability of train engines. There is a deck of train cards that have a number showing how many stations you can have in your income producing operating round. The lowest is 2 so the basic train lets you have a starting point and ending point. They cost money (more $ for higher numbers), and each company is forced to buy one if they don't have one. If the company doesn't have enough money, the controlling shareholder is forced to dip into his own money (victory points) to buy it. If he can't then he is bankrupt, which is an end-game trigger. Number 4 trains make all number 2 trains obsolete (they disappear), and number 5 trains make all 3 trains disappear. This mechanic very much encourages aggressive cut-throat play, so keep that in mind if there is a big disparity in experience among the players; you don't want to make new players rage quit and swear off the game.
It's not for the faint of heart, but is very fun if you have a core group of experienced gamers.