A $900 scope on a $180 rifle? I bet he didn't get the sale! But, the Kimber is a $600 rifle, and a very nice one at that.
Whichever scope you choose, it should be a good quality scope. I own a Remington 541T with a Leupold 4X on it, and some people rag me about putting a $300 scope on a 22. Until they see me shoot the first time.
Cheaper scopes may work fine, but the optical clarity and crispness of focus can only be gotten through high quality optics. It is not the glass that costs money, it is the coating, mounting, alignment and matching of the lenses that cost more and make a superior quality scope.
Having said that, it is possible to go overboard. No need for a $1000 scope on a 100 yard rifle. A Leupold is a nice scope (I would put a 4X or a 2.5X-8X on it). If you have issues buying a $350 scope, buy a Simmons Aetec or Weaver or Redfield (all made by Meade Instruments) for about $200. They are a good scope for the money. Just remember, the less you spend, the less you get. Will you be happy with a $80 scope? Only you know the answer, but you weren't happy with a $100 rifle.