You just can't sample your way out of the problem of getting the sound of many strings resonating when you press a key, especially when you hold the right pedal.
Electronic pianos are good, and I have one, but they are a different instrument that doesn't do what a cheap cabinet piano can.
I have a Kawai CA97 and a grand piano, and I've occasionally asked guests to close their eyes and guess which one I'm playing, and people are usually not sure at all.
I enjoy owning an electric piano simply because it lets me practise with headphones in a small apartment, but it does not substitute fully for a mechanical piano.