This is a "quantity vs quality" question to me.
There are big differences within the pcp kategory, within springers, and between pcp's and springers (both ways aktually).
But the tendency is you use what you like to use,when you can. You grab the gun that fits you and give the good feeling.
But the guns you don't use, or seldom use, have a purpose. They represent the "others", those who underline the quality of the one, two or three guns you prefer the most.
Without this references you start doubting the preferred one. ........To overcome this, you bring out one of "the others", give it some rounds, and you are back on the track.
Or not. We read and watch reviews. New brands and new upgraded versions yearly, or even monthly. The have to have feeling creep on to you, and the itch won't go away until the unpacking is done - once again. One thing for certain, the itch will come back - if not a gun, than a scope or something else you didn't know you couldn't live without just a week ago.