Reply to Opinion S4 vs Z2 vs T1

Hey guys

Before I hit the buy it now button and spend more money I would like your opinion. When I bought my S4 that was the cheapest way to rin dvs with the scratch upgrade.
Now the T1 and Z2 is out I would really like to switch but I was wondering if it's a waste of money or I would really be a upgrade
Thanks for your opinions