Okay...... just got the answer I have been looking for. Yup upgrading the shocks and front struts was well worth the time and money. Just took our coach out for a spin, first since get new equipment. Wind was blowing about 20 MPH gusting about 25-30 MPH. The cross wind gusts did cause the coach to lean but not as it did before. MUCH more stable with the new Bilsteins. DW even drove on the freeway and handled it quite well for her first time driving the coach. A lot less rocking as well, and trucks don't bother it as much.
So the verdict is the new shocks and struts are well worth it.