The Latest Wii Update did change the firmware...The ActionReplay (Ver1.14a & 1.14b)are no longer are accessable
(I dont know if the latest Action Replay works or not)...

And as to why any one would want to "Cheat"...As for me I Dont have the "Time" to devote Hours to certan games...and to me saving Time = saving Money...Im a Father of 4 kids...and any one with kids can testify as a parent 24 hours in a day just is not enough time to get things done...and any thing thats a time saver is also a Stress saver...But thats just My reasoning.