There are differences between "cheap", "frugal", and "impulsive".
A cheap person refuses to spend money because they prefer to do without an object more than doing without the money it costs.
A frugal person realizes a value of something, and shops diligently to get the best deal they can to maximize the value vs. cost.
An impulsive person will spend money carelessly because they don't consider value....they only consider the fact that they want something at that time and give in to that impulse.

I consider myself to be a frugal person. I don't mind spending money for something that I want - that has a value to me greater than the financial cost. Inasmuch, I'll do my homework and find the best deal I can to get what I want at the lowest cost that I can. I try to maximize the value.

I love Starbucks coffee, but it's a "luxury" to me, so I only indulge in it "on occasion". I don't buy it every day - or every week for that fact. If I have one once a month, that's rare.
I don't go out to eat often (maybe two or three times a year) - I have a kitchen and food at home.
I never go to the movie theater - I'll wait six months and buy the DVD for the price of one movie admission and have the movie to watch as many times as I please - without someone talking behind me while I'm trying to watch the movie.
I don't go on vacation to the same place more than once - I want to see other places and use my money/time to do that.

While I can't justify paying MORE than MSRP for a car - ANY car, (it depreciates in value as soon as it leaves the dealers lot and doesn't start to appreciate in value - in most cases - until it becomes a "classic"), I guess SOME folks would find value in paying more than suggested retail value and would do so willingly, so I can't fault them for that. But that's not me. Besides, I want this car equipped exactly the way I want it, and I can't get that in an '08, so I'll continue to wait until I CAN get what I want.