In many cases today "Prime" means next day delivery and that includes Saturday and Sunday too. For the most part I have stopped even looking at Micro Center as their ads seldom are any but in store pickup and seldom are desirable items even offered online with shipping. For me the closest store is over 80 miles so that is really out of the question. I used to buy a lot from Fry's online but they started pulling the same thing with in store pickup only on desirable items. B&H is a relative newcomer but they have great pricing usually and excellent shipping as well except on the weekends where they are shut Friday night thru Sat night. But for most hardware gurus Newegg was the "gold standard" for many years. I used to buy a lot from D&H Wholesale until they stopped carrying AMD cpus for some reason though they still carry their motherboards which I can't quite figure out. When Ryzen became so popular I would have thought they would be back in cpus but not as of yet. I have a D&H Wholesale Warehouse in Harrisburg which is 40 minutes away and I can get overnight. I have not had the freight problem with Newegg Business
oddly enough so I still use them occasionally but the selection is not nearly as broad as Newegg and often times we were paying freight there and not on Newegg which I think they have been correcting. The other problem was often mfgr coupons were only good on the retail site not the Biz site.