Of course, there's a good arguement for building a entirely brand new stadium as it will give us extra revenue etc. But it will cost something like £300m to build and would come in at no bigger than 70,000.
I'd rather spend a quarter of that and redevelop the existing Anfield into a 59-60,000 stadium by rebuilding the main stand (7,000 extra), adding a 3rd tier to the kemlin (4,500 extra) and a larger top tier on the Anny Road (3,000 extra).