What happens if humble bundle's BTA exceeds Tier 3 price?

I don't think it can ever happen tho.

Because nobody would pay more than Tier 3 for it to begin with, right? : )

Then you miss the BTA unless you pay what it requires.

you have to pay more for bta than tier 3.

We go out in a hypernova.

On a serious note, I'm kinda curious myself - though my guess is that by getting the T3 you also get the BTA even if it's higher, given how some people donate up to $100, but it never seemed to have an impact on prices.

It's not like the tiers are in order. It's just minimum, average and fixed price.

Related: http://www.steamgifts.com/discussion/FoEQ1/anyone-remembers-any-humble-bundle-where-bta-highest-fixed-tier-price