atm i'm thinking leaving it as is,in the future maybe a red dot.i'm one of those rare soles that likes guns just as they leave the factory sans different grips at times.
IMO, if you do that, you will be missing out on one of the best things about AR's, and that's interchangeability of parts. Even if you like it in it's stock form (one of my AR's is pretty close to stock, so I can appreciate that) you should still try out a different grip at the very least. I'm not saying just buy any old grip just because, I'm suggesting you go to a gun show, hold a few different ARs, see what different types of grips and stocks are available. For example, I use a rubberized Ergo grip on almost all my ARs. It is very "grippy" and is non-slip even when snowy or wet. I know someone that installed a grip that he can change out the backstrap to fit his hands like a lot of the new striker-fired handguns. Again, IMO, the grip and the stock is where you can see the biggest difference in an AR for the lowest price and the difficulty level to install is next to nothing (assuming you already have an adjustable stock.) Above and beyond that, look at the different handguards that are out there. It took me a long time to realize that if I like the way a particular rifle looks or operates, I don't have to buy a new rifle to get that look or feel, I can just modify mine. Just my $0.02, but to each his own.
ETA: Above all, just go out and shoot the thing! You will know what you like and don't like about it pretty quickly. Your money right now would probably be best spent on ammo and range time. If you aren't able to shoot it, than what's the point, right?