I have around 1800 records, but over the years, I have culled stuff I don't listen to anymore. There is a middle ground between keeping-tossing it all. So far I have not missed any of the records I let go, but immensely enjoy all the new stuff that I am getting.
I still have some of my teen records, but have discarded many others as well. And just in case I am missing something, I can rather easily buy it again (e.g., Mike Oldfield, Jean Michel Jare, Grateful Dead). Those that are very rare I still keep even if they are not quite up my alley anymore (e.g., Vorkriegsjugend double single, Teufelskraut sampler, Rough Mixes from Switzerland octagonal pink, Sperma "Züripunx/Sinnlos" single: 1 on discogs for $371!!!).