Shopping OCD, what should I do?

I want to buy a new laptop. My current laptop works very well, but it's a very fancy laptop I want and I am interested in technology, so I am very sure I would enjoy this purchase.

But. I have hardcore OCD around this. I spend entire days researching, making spreadsheets, doing complicated mental calculations comparing all the deals. I would tell you that there is no perfect deal, but that probably sounds like a drug user saying he just needs one more dose. This feels like a life or death decision. This theme has been going on for very long. The problem with the most perfect ones (brand new models) is that I tell myself it will hit me financially, which is probably not true because I have a lot of savings.

I'm not sure what to do. Do I resist myself from researching for 30 days and make a decision, or do I pick the best available one and stick with it? I could also just try to live with my not as good laptop to avoid consumerism but I feel like I should not deny this desire.