Candidly, although not all the same, rarely do the expensive threads justify their increased cost. You're paying for a name.
So, take your pick.
Although, using your examples, with Supreme you get 1000' and with V2 you get 200' for the same price...
So, the question is... is V2 five times better because you're getting 80% less thread or is someone 'overcharging' you.
Why aren't you considering PET or Kevlar?
Eh...I'm just teasing you.
So, we're back to telling you take your pick.
As for me...I just use spools of IET from Walmart that cost $2.99 for 500'.
You can even make your own 'Loops' too.
Good luck.