A problem with search results

I love Google's search engine. As I've said before though, it's a love/hate relationship. One of my number 1 complaints is that the search results return too much garbage. For example:

• Directories - these sites, with their thousands of outbound links, are becoming nothing more than link farms (with several differences that I won't go into here). I'll admit that I submit many of the sites I manage to a lot of directories. Other than the backlinks I get from the directories, I find them useless. There's no reason for a directory to show up in the search results.
• Wikipedia - honestly, I don't trust much of Wikipedia any more. At one time I found it to be a pretty good source of information on nearly any topic I needed to research. But, they have too many questionable sources, and downright false information. Wikipedia is a great idea in concept, but it's too large to manage and is filled with crap on a lot of the pages. Wikipedia results shouldn't be shown on the first page of search results. In fact, they shouldn't be indexed at all, especially since they've changed their outbound links to NOFOLLOW's. They get huge amounts of link juice, but don't return it back to the pool of internet resources, essentially "trapping" it in their own system. If I want to buy a pinball machine, the search results shouldn't have a Wikipedia listing near the top that talks about the history of pinball machines. If I want to search Wikipedia, I'll go to the site myself and perform the search there.
• Amazon/Ebay - Again, if I want to search for books or items, I'll go directly to those sites to find the items.

Maybe not everyone agrees with me, but when I have to go 2 or 3 pages deep to find a relevant sites, then there are too many irrelevant search results being returned.