Need opinion about this Samsung Tv

If you plan on watching television in 3D, yeah, the more expnsive set is worth it. If not, save the cash! Both sets will be extremely close in standard 2D viewing. Enjoy your new set!

Are there any negative things about the first tv set? Or is it cheap because it doesn't have 3d?

Yes, 3D is the main difference, and there are a few minor. 100Hz vs 200Hz, once you're at 100, it doesnt matter how high your refresh goes. The 6 series comes with wifi built in. There are no substantial differences aside from those three things.

Ok, thanks! Thank you for all your help!

Btw, i bought the tv for 5999!

I am not a fan of Samsung TVs mainly because of their Active 3D. They are totally crap. The glasses are uncomfortable, need constant recharging, and you can't watch 3D movies while lying down (glasses turn black at certain angles).