Also depends on just what kind of person you end up with.
Put it simple I am often the more laidback and 'fun' one, the more caring/suppostive/empathetic one, the one more funny/enjoying humor, and a few other things.
My last relationship was basically almost completely one-sided. So, did I have a lot to offer? Yes, practically EVERYTHING.
I made ALL the effort to try and get to know them, to talk them about the relationship, to flirt, to have fun, to have normal conversations, to provide support/help when they needed it. /sarcasm (it's true I made all the effort, doesn't mean I enjoyed it)
So I've got it all sorted out, don't worry about that. I know what I want and I know my worth and what I have to offer as a person.
Good point to bring up though, some want someone when they can't give back.