I think the regular one didn't have that good a battery life
Seems like also less tint and “true 1x”, or at least less mag. Those that I’ve spoke to and read about seem to say difference is minor, as in you have to be looking for the differences.
At the prices the 2.0 are going for, in tempted to give one a try. Either the MRO or Vortex “Huey”. Will need to put together an upper for it though.