players have their own preferences
No they have manufacturers who sponsor teams and they provide SOME of the players with their equipment
A League of Their OwnThe 1992 film was callled "A League of Their Own" The movie is based on the real life All American Girls Professional Baseball League.
Control, they generate their own power.
Plenty, they have their own leagues, cups and plenty of other stuff
The league code was the for-runner of the professional game. Now the union code has created its own professional and semi profession groups. This was undertaken because of the falling numbers staying in the union code and moving to the league code. Added to this was the fact that demand on the amateur union players were that same as the professional players - This caused issues of retention in the game
Each league (little league, high school, college) has its own limits as far as how many players can be on a team. In Major League Baseball, there are 25 players on a team.
they earn millions of dollars, so I'm sure they can pay for their own vacations
You do not need to own your own camera to take professional or non-professional photos. There are numerous vendors both on-line and in your local area that rent cameras. Having your own camera allows you more time to get familiar with the equipment, but renting is a good way to use high quality equipment without spending significant dollars. http://www.lightstalking.com/wedding-photography-gea
Most professional baseball players use wood bats because metal bats are very easy to hit a home run with and most pros love the challenge behind wood bats. MLB rules dictate that players use wooden bats.
No, as with many professional sports organizations, a player's equipment is provided by the team or in some cases the player's equipment is provided by a sponsor.
Players typically have to pay for their own travel to the All Star games. Except for professional players, most players that are going to the All Star games will do fundraisers to help raise money to pay for transportation.