[quote name='Dr Mario Kart']1) Its called the Ultimate Edition, not Limited Edition.[/QUOTE]
When people assert this, it kinda bugs me. If publishers followed the literal meaning, then this would be true, but they don't. In the end, it's really just semantics. Limited Edition doesn't actually mean anything in terms of rarity anymore. Case in point, Battlefield Bad Company 2 is releasing a Limited Edition. That includes EVERY SINGLE new copy of the game. Prince of Persia did this as well.
As for rarer titles? Demon's Souls was called the "Deluxe Edition" and Tales of Vesperia was called the "Premium" or "Special" Editions. What the technical name is means very little as far as its production run.
That said, I have a feeling you'll be able to pick this one up if you show up on day one.