One of the guages I use for measuring the integrity of an on-line shop is how the shipping charges measure up. Those that really only charge the actual shipping or maybe a few cents over I believe have integrity. Those that use larger boxes than needed, charge a handling fee, or ingeneral do not manage the shipping part to benefit the consumer are my last choice.
I would be glad to get a lower cost for shipping ....if I really wanted I can re- bundle the contents myself.