It's true, Katherine. But for some reason I had a few .co.uk and .de soon after I began and Moniker offered the best prices (and security), at least then (I know, a different tale now) I did check 123-REG.co.uk, I did not like it at all. For .de YoDaddy cost me a domain (they "deleted" it as soon as the
recommended renewal period started, I could not renew it during the
allowed period and was told by them to try to get it aftermarket or rereg it later, I kid you not, so GD .... ? never again for .co.uk, or .de.... but they're best for .mx and .co.mx, for a change) Moniker remains a good option for .co.uk and .de, support isn't as crucial when it comes to ccTLDs since they're harder to move generally and you tend to hold them longer...(and that's right, Moniker belongs to the KeyDrive conglomerate actually, so my .de names were in fact with KD all along)
The exception for us is the few .es names we own, RedCoruña.es is tops and it's cheap (avoid Nic.es like the plague) But those are a bit out of left field, most domainers are not into .es
BENELUX is a pretty European domainer thing (.be/.nl/.lu), I find that risky for mainstream 'mainers, they're not easy to trade aftermarket. But those 3 and .at have gained popularity, Sedo has held auctions just for BENELUX for ex... (EuroDNS, 1und1=null and others of the same ilk make so much US $ w/all those euro exts !)