Mike, I've been very happy with my MiniMax equipment. One of the things I really like about their configurations is that they are easier to buy...there's not a lot of decisions to make about billions of options because of how they package them. That said, their competitors also offer some mighty fine machines, too. In general, if you can fine "late model used", you may get a nice deal. But Erik is correct, this class of machine does hold it's value well. So buying new doesn't hurt you too much and if your needs change, there is indeed a strong market to permit you to re-tool.
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The most expensive tool is the one you buy "cheaply" and often...