A $20 increase on $589 is a 3.4% increase, which in the grand scheme of things is not out of line for everything else on the planet.
Raw material costs increase, i.e. plastic resins, metals, wiring, electrical components, etc. Freight, especially global freight is rapidly increasing due to rising fuel costs, government regulations, and operator shortages. Employees of these manufacturing companies get annual raises, profit sharing, and bonuses. Anything sourced out of China or Asian countries, coils, chips, carbs, etc are severely delayed and companies are paying a premium to get their products manufactured and delivered.
I work in the packaging industry, managing capital engineering projects globally. I deal with the rapidly increasing costs for raw materials on a daily basis. I would be ecstatic to only see a 3.4% increase on my projects.
I paid $599 for my last 261 v2 in 2017 so there hasn't been much, if any, price increase in that time. A $20 price increase in 4yrs busts your bubble? Welcome to reality and economics. Do you expect the manufacturers to absorb the cost increases they are seeing or would you assume they would be passed on to the end user? As would every one of us in our line of work...