Not to hijack (should start a metals section maybe)
From my inquiries with GoldCo, they are really geared towards bulk purchases, like moving your savings/retirement over. If you're looking at a purchase of less than roughly $10k, I've had their reps tell me they're not going to be the best deal. When you are moving big numbers, that's when they start to make sense.
I don't know if they push eagles or what not but they generally don't have a good selection like you can get through most of the online sellers.
I used to follow this closely and had a spreadsheet tracking where the best deals were on 1oz rounds and constitutional.
Here was my summary from back in February and I think for the most part, these rankings still stand.
Bullion Standard with the $35/month (cancel anytime) membership gets you by far the best price for 1oz rounds, even without the pro membership they are generally the best.
Money Metals is 2nd to worst, almost always, with APMEX being almost always the most expensive
As for constitutional, usually Standard, Hero, Bullion . com, and Bullion Express lead the pack. But I get my constitutional locally for usually way better than any online place (typically $4 under spot), my LCS has been in the business for a very long time and doesn't need to squeeze people. I can usually buy 1oz rounds at $1 over spot