Ok, here is my $.02. I owned a T-210 from '90 till March '04 when a damn Mexican stole it from me. If I still had it and could put it on floats, I would be a happy camper. A very good friend of mine had a '78 T-210 and was asked to fly a friend's A 36 while the guy was working out of the country. My buddy hated the Bonanza, period. I know that Beech owners are a very loyal and passionate group. I just know what I hauled in my 210 and still was fast. I can't believe that a Beech could equal the combination of speed, load, and affordability. I acknowledge that a Bonanza might be a TAD faster, but not with a huge load, cg problems arise quickly in a Beech, I think!
I have owned a 182, 206, T-210, and a 185, and have about 2,000 hrs in the 210. For ME, the 210 was light years ahead of any of the others. Faster by almost 50 kts, can carry as much as the 206 ( a little harder to load), and much easier on the ground than the 185(and wider). IF you just want to go from one point to the other, I guess the Cirrus would be good. I can't believe you can find a better plane for the $$ than a 210. I had the gear doors and John Frank told me when I asked about removing the gear doors, "don't do it". Just make sure you lower the gear doors Below gear extension speed. He was right. If you want to haul a load, go fast, and have reasonable (for a plane) parts, a Cessna is for you. Composite materials, glass panels are all great IF you have the money, I don't. When I stop flying floats, I pray that I have enough money and life left to go back to a T-210!