I do know a few months ago Keysight raised the prices on a lot of their new equipment sold on ebay. For example, I know the U1282A and U1233A basically doubled overnight.
As a general opinion comment I would say there was a drastic reduction in manufacturing during COVID (certain things were prioritized), and now with the recovery there is a higher demand for many items. Also, some governments have been handing out relief money like candy, so people are spending but not wanting to go back to work.