dual outboards or single outboard

[deshet]

I have that 23 Center Console. And I know that Sea drive won't last forever so I am starting to perpare my self for a repower.

I personally want to repower with a single yamaha 250

But a lot of people are recommending that I repower with with dual 115 or 130

I really don't know why the dual engine setup would be better for me at all expect that if one outboards goes then I will have one more to get back on. (doesn't really matter since I have sea tow)

I believe that dual outboards will be more expensive to setup, operate, and the mantainence will be more.

also used a 200hp outboard is not twice as expensive as a 100hp outboard ( I can usually find 225 yamaha for $3500 or so and a 115 yamaha is usually at least $2500

any body in the Cheaspeake Bay Area have a 200+ yamaha for sell?

thanks