For $3-$4k get a great upright slightly used.
I have Yamaha Electric Grand, Two Ensoniqs (Sequencers from the dark ages- 90's), Roland KC550/ KC350 amps (Use one as Monitor) Behringer mixer, and a BOSS pedal that simulates the leslie speaker.
1928 Hardman Grand in the garage (Anyone want to come pick it up for free?) Buying something $12k or less in a small grand. Was looking at a great deal on a C5 Yamaha but the wife just clamped down on the size. Looking at Yamaha C3, a Kawai that is 5'8" or so and a Pramberger Young Chang 6'1" as well as a Yamaha G2 all used all in wonderful shape most with warranties.
I used to tour and play live (Rock/ Blues) now my 18 year old son does that (He plays piano but is a guitarist and amazing bassist for his age). Just playing for the fun of it with my daughter on viola (She plays piano but excels at viola) and old rocker jams with buddies (Hence the electronics stuff). We do 70's-80's-90's rock for fun. Getting the itch to join a classic rock bar band (There is one in my town that is just awesome and they have never had keyboards- could you imagine how good they could sound playing YES, Rush, ELP, Kansas, etc?) but I travel almost every week. Glad to hear people digging the Behringer stuff- Uli Behringer (Founder and really cool guy) had asked me to think about joining his company running a sales group in the US (I'm a sales VP in Consumer Electronics with a global company) and I have to admit, that sounds like a perfect job for me, who knows if he still wants/ needs me. I have the music bug again after being off stage for almost 30 years (And 30 pounds) do you believe that? What a dope!