Definitely keep an eye on it. I had my oil changed less than 2k ago and when I was driving yesterday, the engine started clicking. Took it in today and was told my engine is bye-bye. I had apparently been driving with 0 oil.
I have read so many stories of this excessive oil consumption and wish I knew before. There was no warning, no bad smell, no smoke. For an '07 JK with 40000 miles, it's ridiculous and I'm furious. I'd hate to see anyone else face this. It's my 3rd Jeep and I've never had to deal with crap like this.