Cool... I've got 50mm wide on my hybrid & its awesome to ride on everything, with the exception of sticky mud!
I don't care what anyone says or how heavy they are, never understand why a regular cyclist gets all hung up on the weight of things, especially when they're about 3 stone overweight...
I don't see any point in engaging in a tyre arms race to see what the biggest possible size you can fit is. I mainly want to avoid anything that is so narrow it will rattle my teeth on normal tarmac, which at my weight I have found to be below 28 mm. Anything narrower needs such high inflation pressures that the resulting ride quality is unpleasant. A lighter rider than me (13st 10lb ATM) might be happy on 23's or 25's. For me, they are a no-no, so it's an absolute min of 28 and ideally 32 for a light steel drop bar bike.
On a hybrid where the bike itself is a few pounds heavier, and I might have a few more pounds in a pannier or sitting on top of the rack, then 35's are practical. I got some 38's on a very good special offer to try out. They are comfortable, but pretty heavy. I've experimented with running a 38 on the back and a 35 on the front, which is less heavily loaded. It works well enough, but in future I will probably stick to 35's. Being Marathons, it will take years to wear them out though!
I agree with not being too obsessive about weight, but I don't disregard it entirely either. Everything carried on the rider or on the bike still has to be propelled around so it does make sense not to burden yourself unnecessarily, especially if your intended ride isn't very flat.