Disklavier

I have a mid-90's Disklavier upright which I added a DSR1 tone generator to it recently.

I am looking at the DCD1, but would like to know if the additional features that the DCD1 offers on my piano, are worth the $1000 for this option.  I value the opinions of the members of the forum, so that's why I am asking here, in addition to checking with my local Yamaha retailer.

I use the piano mainly for playback.

Thanks.