I was an early adopter of the DX7 when it first hit the street and immediately bought one. Used it a ton. (except for that dreaded tine piano patch which I hated from day one.) Used a lot of my own patches and ran it thru an fx pedal to give it more life and girth.
The DX7 is long gone now, but along the way I also had a DX7-IID, TX-81z, TX802 and a TX7. All gone now except the TX7. Only paid $70 for the TX7, and it works like new, so it's there if I ever get the urge to use it for something....although these days there's many other options available for that. I had a midi rack synth or two slaved to the DX7 as an additional layer when I was using it live. FM and analog makes for a nice combo. Smallest live rig I ever had.