I’ve two full suss bikes, which I absolutely love to ride so about eighteen months ago I bought myself a hardtail frame and dressed it with hand-me-down components from my other bikes.
In truth, the hardtail is all I need and it sees far more than it’s fair share of use. I love riding it, it’s the default choice on long, flat rides but it more than holds it’s own on the rocky stuff too. I just have to think a little more carefully about my line and “float” over stuff I’d normally expect the suspension to soak up.
If I had to give up my bikes, it would probably be the last to go.