Have no worries, I was offered twice as much from a dealer even after I disclosed my purchasing price. But my lovely Estonia is not for sale, we are in this together until a small apartment in old age do us part.
Actually, I think dealers get most of the bargains when desperate sellers are ready to take whatever the dealer offers; which is usually well below wholesale or less. You can't blame the dealers though, because they are individuals in business to make a profit.
Like you, I'm not ready to sell any of my pianos just yet, though I would have to get more than I paid, just because.
I do plan on giving one of my grands to my 12 year old granddaughter who is taking piano lessons. Whenever she comes for a visit, she spends most of her time playing my pianos! She likes boogie-woogie too, but her piano teacher doesn't want her to play anything without reading the notes. I guess that counts me out as a student.
Enjoy your piano, and the Christmas decorations!! (A double Joy to the World!