Yes, that's the right term - over-think. With all the information one can find on the Internet, it's often a matter of TMI. All the comments and reviews can be paralyzing. Add to that a possible idiosyncrasy of indecisiveness, and a person can go on thinking about it forever, trying to choose between buying and not buying, but finding a dozen reasons in favor of each choice.
There's always a degree of risk involved in buying something, especially something sophisticated and expensive, but DSI products are still among the least risky synthesizers that one could buy, in my opinion.