It all comes down to how you get paid.

Let's face it, you aren't running an online store for the fun of it, you're in this for the money.  Real-time credit card support is a pretty standard feature these days, and any shopping cart or e-commerce platform that doesn't offer it is a complete waste of time.

So why would you want to waste your time just accepting whatever number the user types into the checkout form and having to run their card manually later?  Forget that!  Cartooga integrates with Authorize.Net, NMI, PayPal, and Google Checkout, with more coming soon.