Expensive upgrades can be poor values at some future resale. spend 6K on the Resolution Audio CD player, sell your original and you will be far ahead in money and sound quality.
A stock EMM CDSA is a ways ahead of an Resolution Opus (if that's the model you're referring to) on redbook - and does the Opus even do SACD? Good SACDs on the EMM machine rival vinyl setups of similar value IMO.
$5K for an "upgrade" of a $10K player (now available for under $5K used) is quite a lot of money, however.
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