yes expiration is terrible, but what I even more hate is those domain buyers who are not using it.
I think that 50% of all domains are not used, when you buy a domain you should do something with it.

9/10 times when I check a domain in a whois database it says its taken, when I go to that domain on the net 9/10 times it's not showing anything or one of those irritating fake search engines with 10 popups popping up.