I loved my bouncer. I am home alone a lot at night during bath and dinner time and it was a life saver to be able to put DS in there and know he was happy and safe while I did these things. He also loved hanging washing out with me in his bouncer. I got mine secondhand so it was no big expense to me if DS hated it. He loved his walker when he got big enough as well.
II never had a swing which a lot of people I know don't understand how I got by without one, but to me it wasn't essential and we were on limited funds. Every baby and parents is different in what they love though.