I've used Newegg but never heard of B&H what is that? Newegg is good for PC parts but not really for other things. Like RV electronics for example. Altho you can find some of that on other sites too. I do try to diversify when I can and not support the monopoly. One of the main issues I've found is just shipping. Even if you can find something somewhere else sometimes it'll take a month to get there, or it's out of stock, or something like that. Especially more recently. I even had something happen one time where I tried to buy from LattePanda on their site and my bank BLOCKED the transaction and wouldn't let me buy from them directly because they were an "untrusted" vendor lol. But I was allowed to buy the exact same thing 2nd hand from Amazon.