If I want a good entry level home theater, and I haven't invested a ton of money on the space, then an entry level model like the 2045 or the BenQ HT2050 makes a lot of sense. You get a lot of value for the money, but only so-so black levels. Weaker with the 2045, and weaker still with the 2030. The 2030 also isn't a great gaming projector due to input lag. But, it's a decent entry level model.
From there, the Sony HW40ES (or 45ES) is one of the absolute best under $3,000. It's a good step up, nearly completely silent, and has much stronger black levels. But, you need a good room to get the most out of it. The 5030 is comparable to the Sony.
Is it worth it?
You just spent thousands of dollars, in a home that likely costs you a good deal more than that... IMO, spending a extra $1,000 or so for the improvements that go along with it is certainly worth it. But, it is your money, not mine.
I would strongly recommend against ceiling speakers though. Especially if anyone is living above those speakers. In-wall or on wall/ceiling I would go out of my way to install. You may want to talk a bit more about it in the audio sections if you have not already.