Discouraging CPU's just because a project has massive GPU competition is kinda BS, yes virtual hardware vs GPU's is pointless but trying to make seti@home sound like only GPU's can crunch it really is bunk. Some people actually dedicate their hardware and crunch what they believe in and something that interests them vs the other projects and EVERY project is a loss on electricity when it comes to GRC payout for the work you do $.01 per every $1.00 power is about right in return , Gridcoin is not a get rich quick scheme.
Now past that , i hope you did not follow the guides that say to spin up 4 x 2 core 1.8gb machines although running seti that would be just fine , but I found 2 x 4 core 3.8gb machines more worth while but I was crunching asteroids@home at that time. Crunch what you want to and what you believe in and the science that interests you... Seti@home is a CPU project too...