I held out for the CE (even though it cost me over $110.00 to buy in Canada) because of the pet. My Fiance installed it for me on my pc and upgraded my account. I wondered about the pet thing because I was expecting to get a card with a code or something - like the murlock pets, but was pleasantly surprised to find that as soon as I created my Draenei I had mail. I ran to the nearest town with a box and claimed my pet. I decided to see if all of my toons got it, and yup all my existing toons had mail waiting for them as well. Now all new toons created on my account have a neatherwhelp. I am so thrilled.
Just keep in mind that these are BoP so you cannot trade, mail, sell or otherwise make profit from them. I was kinda bum'd from this as I was hoping to send one to my Fiance for being so nice and buying it for me, installing it and all. Then I realised that this was really a good idea, how much would someone be able to make in-game off of AH'ing neatherwhelps for 1000g or some other insane amount over and over.
I would say that the only reason to buy the CE over the regular edition is the pet. It gives you a certain status on the game, but that is about it. If you don't care about pets...don't bother.
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Mishkarah
Elven Huntress on Eitrigg
"May the spirits guide your path, and bless your actions"
Mishkarah - lvl 70 NE Huntress (Gore lvl 70 Raptor)
Padmay - lvl 27 NE Druid
Phaidra - lvl 44 Draenei Huntress (Tethis level 43 Raptor)
Sharice - lvl 12 BE Huntress (Aragog lvl 11 spider)