If you had an Unicorn Account you could see a chart with the price development of this module and the average price asked for this module.
Disclaimer: Modules listed for sale on the ModularGrid Marketplace are offered explicitly by their respective owners. ModularGrid is not affiliated to the sellers and takes no legal responsibility in any transaction.
The internet is a rough place and fraudulent behavior can occur. If you are concerned about dealing with strangers consider buying your module at an authorized dealer.
If you think an offer sounds suspicious please report to firstname.lastname@example.org