Hey Ecosse!
First of all, you have a great player and if you like the sound of it, stick to it. Second and in terms of audio, there possibly a wide range of what's you gonna like more, but it may be not. The universal players like OPPO mostly are used with external high-end DACs, they do cost a lot. So if you really want to get rid of your SACD and to start that looooong listening session in search of your sound, then the marked is wide open. But I haven't seen high-end BR players with an outstanding DACs combined.
First of all, you have a great player and if you like the sound of it, stick to it. Second and in terms of audio, there possibly a wide range of what's you gonna like more, but it may be not. The universal players like OPPO mostly are used with external high-end DACs, they do cost a lot. So if you really want to get rid of your SACD and to start that looooong listening session in search of your sound, then the marked is wide open. But I haven't seen high-end BR players with an outstanding DACs combined.