It sounds like you may be interested in trying out a RowErg before making a purchase. We definitely understand your desire to try out the RowErg before making a final decision.
Concept2 sells factory direct and we do not have stores where you can try our equipment. Our customer service team would be happy to help answer any questions that would assist in your decision making.
We also suggest you read our product guide, "Which RowErg is best for me?" .