It really depends on what market you're targeting, but having to deal with 50 states' worth of law is usually not that easy unless it's an already well establis

It really depends on what market you're targeting, but having to deal with 50 states' worth of law is usually not that easy unless it's an already well established segment. For example, even calculating sales tax and shipping costs online used to be considered a fairly complex problem until stuff like Stripe and friends took off.