I think we may be reaching a point where sensors are nearly as good as they can get with little room for improvement. This may be decreasing the interest in getting new gear, or cameras at least.
I have seen very little difference in what sensors can do and how they have progressed over the last couple of years, and the advantages I do see, I feel is more of a result of better raw processing engines.
Personally, I have been almost exclusively shooting with a P45+ for the last 4 years and started out using it with Capture One v.5. Base (50) ISO has always be great, but on v.5, even 100 was not so good. Since then, I am now working with C1 v.9 and the files are much nicer. Base ISO has gotten considerably better, 100 & 200 are very clean, and 400 is usable for some situations. All this without any updates to the firmware in the back; essentially the same files, just much much better due to nothing in the camera.
(800 still sucks! The noise can be controlled fairly well, but the loss of color is what really gets me. With that said, I feel all cameras loose a considerable amount the color field once you get 4 stops above base, more then I care to work with.)
Also, social media and the internet is a much cheeper and effective means of marketing then trade shows for both companies and consumers.
For me, I would love to upgrade to a camera with wireless connectivity to an iPad, and maybe get a couple new lenses, but that is it.
Good lighting gear is always something I would be interested in though.