I worked out the replacement cost when I insured it to move from the UK to France at around €120k, there was some doubt as the speakers haven’t been made for 15 years and the turntable maker is no longer in existence. Only a speaker change is under consideration as I’m moving again and the new place has plasterboard lined walls which my not suit my speakers designed to go close against a solid one. It might be possible to treat the wall instead.
Cartridges are forever a temptation but funds are more limited since I retired so keeping consumables costs under control is more of an issue.
I’m planning for a service of the electronics in about 10 years and probably won’t need to worry about another in 25.