@sfischer1 while I agree with you on economics (i.e. that there is not nor should there be any relationship between materials costs and end product price, provided the manufacturer can make a product you can price to what the market can bear) but the OP's assertion was that the expensive tonearms were a "rip off" i.e. that they provided no improved performance over a sub $1K model and that any perceived improvement was down to the naivety of the buyer.
While I do not want to enter any discussion of what a marginal improvement in fidelity is worth (to some zero, to others a very large amount) my experience was that better tonearms, which are often costly, do deliver appreciable and definite benefits. Whether that is worth it to the buyer is of course her decision, personally I drive a basic car and spend my $ on audio, but everyone's preferences are their own
While I do not want to enter any discussion of what a marginal improvement in fidelity is worth (to some zero, to others a very large amount) my experience was that better tonearms, which are often costly, do deliver appreciable and definite benefits. Whether that is worth it to the buyer is of course her decision, personally I drive a basic car and spend my $ on audio, but everyone's preferences are their own