Don't buy Allnic H1201 phono stage new.

Even if the deal looked good people would be wise to wait until someone compared directly the old and the new. 

H1201 retail was about $3500, H1202 is about $3750. Take home prices is another matter, probably vary.
Is there any reason not to have tube power supply in tube equipment ?

Tube rolling is another matter. It's often like cables, sometimes better/worse and sometimes it is about system synergy and preference. At least with Allnic you don't have to replace average quality modern tubes right away. Whether or not this new model is better we should know soon enough, but Allnic is a serious company.