I'll start buying from NB again if they allow me to pick stuff up from their warehouse. It won't be as good as having their actual B&M stores open but it'll suffice.
Until then I'm a Ritebrew fan as well. Occasionally I do have to choose recipe plan B because something is out, but it's rare. I'm lucky enough that using Speedee has things to my doorstep in 24 hours for like $10. My last shipment arrived with the ice pack for the yeast still cold.
I don't hesitate to use BrewHardware, Williams, and occasionally Norcal. Others have been fine too, such as some of the hops sellers.
So, I suppose the one place I intentionally avoid is actually NB. No actual hate against them, but closing their stores and making me order online is more than a little annoying. If they thought closing the stores in town would keep me as a happy customer, and I'd just order online instead, they were wrong. Avoiding them is barely a drop in the bucket and it might be petty, but combined with them being so dang slow to ship and then slow to have it arrive after it's shipped (when I live just a couple miles form the warehouse) sort of ends our relationship.
Nothing new, just felt like a little ranting I guess.
I live less than 10 miles from NB's warehouse and would order from them if I could pick up there. Unless they start doing that (they've been teasing warehouse pickups for some time now) I'll avoid the hassle of dealing with NB/MW.
OTOH, I have had excellent service from Ritebrew, Brew Hardware, and William's, and will stick with them.