"We should have a gentleman’s agreement to postpone the GPU arms race as long as we can for the good of the network. It’s much easer to get new users up to speed if they don’t have to worry about GPU drivers and compatibility. It’s nice how anyone with just a CPU can compete fairly equally right now." https://bitcointalk.org/index.php?topic=12.msg54#msg54
"[As] the network grows beyond a certain point, it would be left more and more to specialists with server farms of specialized hardware." https://www.mail-archive.com/cryptography@metzdowd.com/msg09...
"We should have a gentleman’s agreement to postpone the GPU arms race as long as we can for the good of the network. It’s much easer to get new users up to speed if they don’t have to worry about GPU drivers and compatibility. It’s nice how anyone with just a CPU can compete fairly equally right now." https://bitcointalk.org/index.php?topic=12.msg54#msg54