Is an unbalanced preamp a bad thing?

I think OP has a big question mark in his brain and that  let him to ask again. Very similar with me.

On this forum, people said it again and again ,it is the better choice to use XLR input, but why there is so many RCA  pre or amplifier on the market, especially for some main Street brand like CJ.

In my personal experience, RCA connection bring very good experience, even better than XLR.

All in all, it goes down to the design of the amplifier, the connection won't decide the sound in large percentage.

@ghdprentice 

          Yes!  You are understandable guy!

The design of the amplifier is the core.

If you amplifier has RCA input, there is no problem.

XLR itself won't bring the better sound. Good sound coming from the good design of the amp or pre.

I agree with @ghdprentice for the hifi journey.

In the same time, people in different period do different things, there is thread talking  " After years separates,I'm going to  integrated "

That said ,some people explore more and some one need easy solution. And It might be the same guy in different period.