Originally Posted by svthomas
In all honesty, it may cost more, but no kit can replace some good research and a custom loop. The thing with the kit loop is that you'll more than likely outgrow it, parts will immaturely wear out, and or you'll upgrade pieces, which results in you buying parts twice.
In my opinion, do it right the first time; build a budget conscious custom loop and buy parts once. Not to mention it is super-fun, and there is definitely something to be said for watching your custom creation come to life each time you start your machine. Building/planning the cooling loop is probably my favorite part of a build. That and sleeving cables.
*shrugs* The Raystorm Extreme kits contain the exact parts that many people pick when doing a custom loop, and there's nothing included that I'd expect to fail any faster than anything you bought separately. They're noticeably cheaper than buying the same parts separately, so unless you just didn't want compression fittings or a bay reservoir there's really no reason not to get them. Even the Rasa kits aren't a bad purchase, while the Rasa cpu block isn't one of the current top performers, it's still a great cpu block that performs as well or better than the last generation of blocks, which plenty of people still run.
You'd have to start looking into used parts to beat the Raystorm Extreme kits, and even if you scrapped compression fittings it's unlikely you'd beat the price buying new. Unless you don't want a bay res, it's what I'd suggest you pick up to start with. The pump, cpu block, and radiator are all top-notch, and you can easily pick up a GPU block or two and some different tubing and still come out cheaper than if you were buying all the parts individually.