Ecommerce solutions are endless whether it is Squarespace, Wordpress or OpenCart. But one can ask the question, Who is actually aiming for auctions?
Very few and most of the systems available are outdated. As a result, you unfortunately have to consider creating / buying a new auction system, which is very expensive.
Which we at NLA think you should avoid. Therefore, we have created our system as a subscription service. We at NLA take no commission, but a fixed cost per month & you only pay when you use the system.