8MM vs 10MM Polycarbonate sheets in CT/NY/NJ area?

I need to deliberate about every penny I spend on materials for my tiny little greenhouse build.

I will likely only be buying SIX 4x8 roof panels.

8MM and 10MM multiwall polycarbonate panels are available within driving distance (I need to pick them up to save on shipping).

The range on those is about $50 to $75 respectively.

Will the additional 2MM be worth the investment in the 10MM panels?

Does anyone know of a good vendor in the CT/NY/NJ area?

Are they both the same number of walls? If the 10mm is triple wall vs 8mm double wall then definitely go 10mm. I don't know that I would trust anything less than triple wall on a roof, but we get hail here.
It's a hard decision. I scoured the internet this fall and had a pricing spreadsheet going. I went with 16mm triple wall available locally. Cost me $105 a sheet, but man that stuff is solid.Sorry you don't have Menards in New England because they were best on pricing.