I've liked almost all my bikes - that's why I got them. But I do like building up bikes and trying them out and I have no compunction in getting rid of one that no longer gets ridden much.
I've happily got down to three bikes - a road, hybrid and mtb, and any of those could go if a better one comes along.
I just sold today a renovated 1989 mtb to a first year university student as his daily college transport. He was over the moon to get it and i was happy to see it getting used.