Bobs has three almond flour grinds that I know of - the usual, fine, and super fine. I've just ordered four of the $8 "super fine", although I usually go with the normal grind as I like the texture it gives baked goods. For my purposes, I go with whatever is cheapest at the time, unless it's a "special occasion" bake that requires extra care.
The Vitacost website is kind of a nightmare, but if you subscribe they do send a lot of discount codes. My latest offer was $20 off a $50 order, which pretty much paid for the shipping. And their stock does change - the Daughter spotted some Manischewitz products this week, which is something we hadn't seen there before. And Stubbs BBQ sauce (mesquite).
Shipping to the UK is variable - there's the "prepay customs cheap option" which eventually is delivered by Yodel, another one that's slightly cheaper but where you pay the VAT when it arrives (not sure why one would want to do it, as then you also get the 8-pound handling charge tacked on as well), and an expedited FedEx shipping option. I tend to go the cheap route and it's usually here within 10 days:
"Flat Rate of $11.99 up to 3.6lbs, $1.80 per pound thereafter; Full tracking available
20% VAT on orders over $25 USD collected at checkout, no additional fees at time of delivery"
You can get a heck of a lot of Stash tea and good quality spices into 3.6 pounds of box. (And they also have some nice brands of makeup, too.) And then, there's the Vietnamese Chili and Garlic Sauce. I used the last of a bottle yesterday and today I have (having not put enough onions and cumin in the crock pot) a very passable facsimile of Taco Bell enchirito sauce. (I have sooo been wanting a proper enchirito, and TB does not sell them here.)