ok, I just went to a local walgreens and tried the test.
it's a pretty short test IMO and I don't really think it accurately measured what my foot needs. Also, the solution it recommends cost $50! I think it's a complete ripoff but I went ahead and got one anyways
just to see if it'll be worth it.
my first impression after trying it on is that it feels as comfortable as my old $20 ones so now I feel guilty about paying so much for them. now, I won't really know they're worth it until a week of testing them in normal day to day wear. until then, it's a good product, but not worth the money.