I just recently reduced from 5 to 3 and I feel a lot happier (for the moment at least). I just felt that with 5, some only got worn very seldomly, and with 3 I actually wear all of my watches.
It works for me, but we are all different. I just realised I’m not really a ‘collector’... I have the BLNR and it’s become my daily - I have no idea how prices will develop, but I love it on my wrist even though I probably overpaid.... only time will tell!