SCD-777ES or SCD-1

I used to own an SCD-1, and have heard the 777es. They are more similar than different, in terms of sound, so for me it would come down to:

Balanced vs Single ended: SCD-1 has both, 777es only single ended
Aesthetics: IMO SCD-1 is an iconic piece of kit, and the 777es is just okay
Price: used, there's roughly an $800 difference between the two

I would add the caveat that both have notoriously slow disc load times (the main reason I sold the SCD-1). I have a feeling that the SCD-1 will keep it's value better because many consider it a legend.

If the price difference is justified by the above then I would go for SCD-1.

Both units are identical inside, except that SCD-1 has transformer shields and an additional PCB at XLR to derive balanced output from single-ended analog stage. The additional processing for XLR may even degrade signal relative to RCA output. In RCA mode they are indistinguishable. In stock fitment they are average at best, but well-modified examples can hold their own with current hi-end players.

Put another way, at $800-900 for a used 777ES vs. $1800 or more for SCD-1, 777ES is a good deal for anyone interested in performance/value or mod potential. Moreover, a 777ES can easily be converted to true balanced operation through one of several pro mod shops.