My SP280 arrived; but I got home to late and tired from work to open it. I will post a review here.
I looked at the SP250 as well but thought I would trade off the RH3 for the newer model.

Previous Korg items I owned included the Sg Rack module and Triton LE- on a side note I purchased a Krome 61 last week for writing and future PC recording
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Roland Juno Gi
Casio PX-130
Korg Krome 61
Korg SP280

Rokit KRK 6 monitors
MXL V67G microphone