I always like to do a ton of comparison shopping on large purchases, and in the end sometimes I may not get the best deal possible, or may get more or less options than I started my search wanting, depending on the deal. But when I decide to make the deal, I most importantly determine: is it what I want, and is it worth it to me and fit in my true budget. After the purchase, I try not to look back (it is hard not to), as it is too late and nothing can be done after deal is done, so I better be happy with what I got, bringing me back to the extensive research and shopping up front.
I would say it is hard to compare other peoples purchase as their are so many factors that go into it, options, taxes, locality, convienience, person your buying from, new, used, time of year, etc.
In the end, I say buy whats right for you, and if you believe you are getting what you want at the price you are acceptable with. haggling over a couple hundred bucks on a large deal can raise tension and get sour quick. Another thing I like to do is sleep on it. If it doesn't feel right in the morning, time to move on and keep hunting. When it is right, you usually know its right.
Just my opinion.
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