There is no definitive answer to this question as it depends on a number of factors, including the size and location of the poker room, the games offered and the skill level of the players. However, a well-run poker room can be a very profitable business.
The key to a successful poker room is generating enough player traffic to keep the games going. This can be done by offering a variety of games at different stakes, running regular tournaments and providing a comfortable and inviting environment for players.
Another important factor is ensuring that the players are of a sufficiently high skill level. This ensures that the games are competitive and that the room can generate enough rake (the percentage of the pot taken by the house) to make a profit.
Generally speaking, a poker room can be a very profitable business if it is well-managed and able to attract enough players.