If you are getting 2.2% from PayPal, you must have over $10k in credit card charges monthly. But that's a good find on WePay as those higher rates can matter for small businesses that do a lot of CC sales. (Most of our enterprise customers still pay by check.)
Do know that PayPal charges $30/month for the benefit of using the APIs, and I think an additional $30/month to handle subscriptions via the API. WePay has no such fees. So the CC rate difference if you have at least $10k in monthly credit card sales is just 0.7%, meaning you need $4285 in monthly sales just to pay for that fixed cost, and if you do subscriptions too, it becomes $8500/month. And the monthly fee is charged whether you used it or not, and if not, your volume is lower and you pay the higher rates. As your volume increases, other more dedicated merchant accounts may start to make sense.
I agree that most have heard of PayPal over WePay. But I doubt most care who is performing the merchant account activity, and our experience is that customers rarely select to pay using PayPal balances.
Either way, we'd be happy to help you with that development course should you pursue it. It's just not high on our To Do list at this time.