Here is one:

What are those classes and do we need all three? If this is for mostly sentimental reason, would dropping to one class for 900€ not suuffice? Any extra funds could be used to purchase the TM in China, for example, to prevent the flood of szopin's Maemo-branded rubber ducks.

I do not know about others but I did it because I think that owning a TM gives the community a more "official" status. It adds a little more weight in case we need to negotiate a deal with someone: "We are a registered organization and look, we also have a registered Trade Mark!"

It may not be so important for commercial reasons, as you correctly point out, but it is more than just sentiment.