GAS affects ALL instruments :)
I am now “down” to four bass guitars... have shuffled through quite a few looking for the perfect tone. Now I’m good!
Yes I have that as well.
Every harmonica sounds and plays different. And damn it, those that sound great by a whole lot are three times the cost of the good ones and eight times the cost of the cheap ones. Unless you are going all the way to a stainless steel reed or something equally exotic, this instrument does not last a long time due to the small reeds and the dirty environment of spittle they are subjected to in normal use.
Then there are microphones. How about trying a dozen of those?
Amplifiers are another entire issue since there are very few made for harmonica. So you are looking at a small custom manufacturer.
Then you have to add in delay, reverb, low end enhancement, and all sorts of other dial in effects for that blues sound that can keep up with other amped instruments.