It's always a shame when real life gets in the way of a hobby. Ive very nearly sold my classic gear a few times for the same sorts of reasons. In the grand scheme of things though it doesnt hurt too much. There's plenty of less expensive ways to still enjoy the amiga (forums, emulation, aros, etc.) so no need to give it up completely. Seems pretty reasonable to give a baby and family priority
Perhaps somewhere down the track you'll find yourself in a better position to get back into "real" classic hardware again if you decide you'd like to.