[gcbw2]

It's not like you could also do anything about slow page loads if selling via amazon or wallmart.

[rladd]

Yes, but Amazon brings traffic and a customer base to the picture. Shopify doesn't.

Shopify is competing with any other shopping cart software, and for companies concerned with performance there may be a case for hosting your own.

[rhizome]

>Shopify is competing with any other shopping cart software

How many of them have better performance? Might just be a "all of you have to do is be faster than the slowest."