Hi Dirk,
For me it was worth it to purchase a license for $50 for my workstations that were using webdrive in a production environment. I found Webdrive's tech support well worth the licensing fee.
I can see your point about buying 50 copies, but if you need to do so in the future, I think Webdrive offers some very competitive multi-pack discounts.
Regardless of version, I think we both agree that netdrive/webdrive is a great product.
Malcolm