Here are many other microscopes the prices of which you may not have heard. Is it enlightening?
This is journalism of course, but there is no need to discredit everything simply because you can word it in such a way as to make it sound stupid.
Personally, once the sum for the microscope was mentioned I was able to judge that the research is quite serious, has the latest technology and advantages of the latest technology and thus give me more confidence in their findings. Is it such a bad thing to use facts to make a story credible?
Aside from its price, does it have some unusual capability that enabled them to make this discovery? That is the kind of fact which would make the article more informative. When it's possible to image molecules with a device you can build for under $100, knowing the cost of the equipment someone used isn't very useful. It's analogous to an argument from authority.
If you can build something for $100, yet the same thing they used costed $250,000 to build, ok let us even say for good measure it costed $25,000 and the rest was inflated, compared to $100 it must be a well awesome product, way superior than what you could build, ten times, 25 times, and if we are to trust the actual figure, 250 times better than what you could built.
The point of the article is most probably that it is the latest technology anyway. I mean, it is fine to look out for these flaws, but something much grater happened there, they actually discovered something. If all we get from comments is flaws flaws and the opposite down voted, then this community simply is not working.
The price of the equipment is not a factor in the credibility of the work. It does not make it more or less credible or flawed in any way. It is unusual to see the price of the lab equipment mentioned - that's all.