And that was a problem with Siteground ... @Mar will probably tell you of her bad experience with them.
I have been in a number of host providers, even before I started droshipping, iPage, Bluehost, etc. When I started dropshipping store, my first host provider was Siteground. I have lengthy post here about Siteground. It is an example that being expensive is not necessarily better. Then I moved to Hostinger, A2 Hosting, Namecheap, Hostwinds, HostGator for only a week and the present. Different host providers, each with different issues.
Some host provider spend a lot in marketing, you can see them everywhere, reviews here, reviews there. Where do you think they cover all the cost? of course in the price of their products. No wonder why some are expensive than others. But if you look closely, what they offer, free site migration, 24/7 support, free SSL, etc. etc. is more or less the same. It actually differ on how their servers perform. Take for example WP Engine. It's shared hosting plan close to mine, the "Scale" cost $290/mo. against mine, a tiny fraction $5/mo. I happened to see their site since I am receiving their newsletter even if I never subscribed.
Out of curiosity, I talk to their live chat support a number of times. I asked the agent what is so special in WP engine, is there something that would justify the very high cost of their product. The answer was the same as above, free site transfer, 24/7 support, free SSL, blah blah blah. Then the guy said they have more than two million clients and they are the king of wordpress. I told him my host provider has more than three million subscribers yet they don't call themselves the king of wordpress. The guy closed the chat window, apparently annoyed by my questions that are very hard to answer. He never gave the answer I was looking for. Assuming they are a bit better, the price is not worth. My point is being expensive is not necessarily better all the time and that is due to some reasons behind.