Oggyswain

Hi, I haven't owned a Line 6 Product for a long time, It was a Guitar pod. I currently own a Boss GT100 Multi Effects board. I'm not too happy with it it's very muddy. I have heard great things about the Helix but the price, Yikes! So what are the major difference between the Helix and Helix LT? Are there ever any sales on these items. Thanks in advance.