Several used sonos faber il cremonese for sale. why?

If you are just asking why there might be one or more sets for sale, the answer is pretty straight forward. People constantly buy audio gear, try it out, and move on. Maybe they didn't love it, but maybe they just want to try something new, or move to a new space and need a different setup, or need to downgrade for financial reasons, or... the possibilities are endless.

I have encountered people who seem to think along the lines of "if a product is so good, why would anyone be selling it on the used market?" Which seems like a weird question. No matter how nice the speaker, or amplifier, or turntable, it is virtually guaranteed that we will find a used example out there at some point. For all sorts of reasons. It says nothing about the quality of the actual product. Same thing with cars or pretty much anything else you can think of. 

@roxy54

Is that a good thing?

@v-fi

It just seems like there’s several used speakers available where the used prices are consistently between 25 and $30,000. That’s not good. Especially when I hear they are one to three years old. No one really knows I guess..

the list price of 55,000 may simply be too high. It just makes me wonder how overpriced these so-called higher end speakers may actually be.

Overpriced is a relative term. It usually means "I can't afford it". Not every time, but most of the time.

If you are going by parts count and cost, every speaker over 10K is "overpriced". Two questions remain.

Will you get commensurate enjoyment from the speaker?

Can you go to sleep at night knowing what you paid?

If I was looking at a speaker that I thought I might upgrade at some point, I would look at used prices to get a feel for resale value.  If they were half price and a speaker that I wanted, I'd buy used and feel like I got a bargain.  But, if there are a number of used pairs on the market, I would wonder why.....

I haven't seen my speakers show up on the used market, plus I think they're my end game speaker.  At my age (62), I don't plan to ever upgrade.  I suppose that could change, but not likely. 

You will drive yourself crazy playing this game.  

There are always new speakers being designed, built and released.  There are always speakers on the used market.