Totally agree, I have a few basses (nothing seriously special but fairly difficult to replace or find again) that have increased in value. At my time in life I should move them on, I can't play them all, I don't need a 'recording fleet'. I have my go to bass (£375 Gibson) but I enjoy the rest now and then which is the problem. Collect for gain at your peril, if you get attached to them all is/may be lost on the investment front