system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: In the wake of A-Rod's suspension, why is drug abuse such a problem in Baseball?

There seems to be a big drugs scandal in baseball every few years. Why is it such an issue?
gpt
Risk-Reward

The league minimum for major league baseball players is around $500,000 with an averge salary around the $3,000,000 mark.

A player can make a very large sum of money over the course of their career even while using PEDs.  

The current CBA (Collective Bargaining Agreement) does not allow for the modification of contracts, so even if a player is caught using PEDs, they will be suspended, not get paid while suspended, but come right back and start getting paid once the suspension is served.  A perfect example is Ryan Braun.  His contract with the Brewers was extended through 2020 and is worth $105 million dollars.  He will serve a 61 game suspension (through the end of 2013) and will be back on the field in 2014.

Braun was able, through the use of PEDs, to inflate his value to get a high value, long term contract.

The monetary reward of using PEDs is currently so great, the players are willing to take the risk of getting caught and accepting the suspension.