Wikipedia provides a good service for the money it charges you. It doesn't charge you anything.
The thing about free things is that they aren't really free, someone is paying for it and the people doing the work to keep Wikipedia online are the best skilled and placed and experienced to decide these kind of spending decisions, not people with no personal investment orwho do not donate and don't even edit or do any work but somehow have opinions how other people should do their job for free.
If you use Wikipedia and getting value from it then you can't really complain, it's not positive.