I suggested to a merchant to signup his business at Bitpay to process Bitcoin transactions for him, but he phoned me and complained about the low "Daily Volume limit" that are applied to him, if he stay with the Basic Tier.
<USD 100 & USD 500 annual limit>
His sales volume is about $50 000 a day and these limits will severely restrict his income and the support from clients, if he cannot process their payment, when they pay with Bitcoin.
He says the verification for Tier 3 and 4 with no restrictions is too invasive and they ask a lot of personal information. One requirement is for them to schedule an interview with the Director Onboarding / Chief Compliance Officer.
Merchants will never jump through all those loops, just so that their customers will be able to pay with Bitcoin.