I sold an adjustable sight 2" 60-1 (Ashland special) and bought my 60-4, no regrets from a using standpoint. I couldn't hit the ground with the 2" 60, but the -4 shoots like a much bigger gun. It is one of my top three favorite and most used revolvers, and is not for sale. Then, I also have a no-dash 60 that is my daily carry.
And I know you can get basically the same gun in .357, but I have no desire for a .357 in a gun that size; perfectly happy with the good old .38 Special in this platform. If I want .357 power I'll carry my 2 1/2" 66.