Yes; why not learn from sites / apps here; you get ads/data sales, it shows that you do after installation. For $10/year you don't get either. Most people don't care about $10/year. Look at mobile; people install for $100s/year of apps/games they use/play once. Who cares about $10/year for a good looking, well supported desktop? Otherwise, us another distro. I just like Ubuntu on the client and Debian on the server.
They should offer a ad-free system, which you pay $10 for, or a free version, supported by ads.