The TDR add banner on my Smart Phone and laptop is relatively small unless I inadvertently select it. Next time you log into your web browser, check how many adds are there. It's more than a little more on dues to offset the cost defrayed by adds. Our dues buy a lot...the quarterly magazine alone is worth the cost alone.
Lots of folks underestimate the cost of running a website... maintaining balance between security and access, updating software, maintaining compatibility with all the devices and platforms accessing it. Backing it up, tech refresh requires pretty much replacing servers and hardware about every 5 to 7 years. And for the most part, TDR has an amazing uptime rate. Support staff is another huge expense, on going training on software, and hardware. And the cost of connectivity is enormous.
Just saying there's a lot many folks don't know about providing a 24/7/365 website.
For my part, thanks TDR owners and staff for a great job and service.
Cheers, Ron