you are using their free account not the 50 bucks commercial account, right?
How many google commercials you got from the free account. I think got a few of them is worth the value if i can have a good spam control to fence off the other spams.
some hosting companies uses some free or cheap spam control, it may not work very well. i think google might be the one who has the money and resource to do this spam control free. And these free services google offers can get the benefits for google more than for other companies, it should be a win-win.
could you explain a little more about "made a catch-all gmail account, then tied all my other email accounts into it with pop3." ?
could you briefly explain your steps. I would like to try your approach out myself. Thanks!