Be careful with casino "credit"
Does it affect the credit history?
No. An entirely separate bureau, called Central Credit, is used. Casino "credit" is really not credit at all, it is check-cashing privilege with usually a 30-day period to cover the checks, which are called "markers".
Can I have credit line in many casinos?
Yes. Just don't open too many too quickly. If you try to open 4 or more lines in 14 days, you will be declined everywhere, and probably result in cancellation of the marker accounts you previously opened.
I am concerned that my worsen my credit score.
It normally will not have any effect on regular credit.
Any comments on pros and cons of this issue will be appreciated.
Below is a link to a previous thread on this subject.