If a man is convicted that bad, then he should not do it.
I am a Pastor and I have been asked this lately. I have searched the Bible for this and I have not found anything that says it is a sin.As long as one does not put Any of the competitions in life above God.Not just money.
As far as casting lots, they did this to make a decision or a choice.
Matthias was the replacement of Judas to be a diciple by casting lots.All through the bible until Acts ch 2, they drew lots.Acts is the last of drawing or casting lots.
Just because so and so said it is a sin to do things, does not make it so.Study your Bible and Pray, Pray and Pray somemore about this and Everything.God Bless.
I'm not perfect, just Forgiven........God Bless.