The difference in the top of the line Aramith ball and a Walmart CB will be in the material and the manufacturing.
The material of the Aramith ball will be much harder, and probably also more uniform. This will lead to a ball that wears longer, scratches less, rolls truer, and bounces better.
The manufacturing differences will make the Aramith ball rounder, and more consistent from ball to ball.
Whether any of this matters in a bar league situation, will depend on the environment you are playing in. If none of your team mates care about using an oversize or magnetic ball vs a regulation ball, then the rest of the ball set and table equipment is probably well below top quality equipment. If that is an accurate assumption, then you probably bought the right CB for your situation and saved yourself $17.
The material of the Aramith ball will be much harder, and probably also more uniform. This will lead to a ball that wears longer, scratches less, rolls truer, and bounces better.
The manufacturing differences will make the Aramith ball rounder, and more consistent from ball to ball.
Whether any of this matters in a bar league situation, will depend on the environment you are playing in. If none of your team mates care about using an oversize or magnetic ball vs a regulation ball, then the rest of the ball set and table equipment is probably well below top quality equipment. If that is an accurate assumption, then you probably bought the right CB for your situation and saved yourself $17.