Indeed I do, though I'd eat it warm too. I love ketchup. For my wedding, a friend gave me 2 giant bottles of ketchup! LOL! Now, mustard on the other hand......... EWWWWWWWWWWWWWWW. Won't go NEAR it. Gag!
Well, we keep ours in the fridge. I only use it for cooking and on hot dogs. My kids use it for a lot and they like it cold as it helps cool off their food. However, when I get onion rings from the hot dog place down the street, or a Bloomin Onion from Outback, I have to have room temp ketchup!
This is actaully a common misconception. Mustard must be kept cold, but not ketchup. It is why you will go into a restaurant and see ketchup on the table, but never mustard.