I have tried it all except won't buy a mono suite. My bibs zip to my jacket if I want that but the reality is I want to keep the jacket to wear by itself for shoveling snow or other outside activities after its sled life is past. I have done this several times over the years and often have passed the bibs down to my son too. I also like to be able to wear my jacket into a restaurant after sledding and not have the bibs on. Just way more practical.
You will be converted. You are just stubborn like Papa Smurf!!