The problem is that you are under the huge misconception that a good HT projector is $4,000 and that there isn't something extremly good for far less and that you are happy to ignore all the failings of what you purchased as you recommend it to others.
I have no issue with YOU being happy. But, if you were happy with VHS and told everyone to buy it - but didn't tell them "By the way, this product is obsolete and most new movies aren't available for it." then I would hope someone would let people know that your choice doesn't reflect what is far more common practice for people.
As such - For $700 you got a defective product, which should have been returned replaced. But, for $1,000 you get (currently) 3 choices for 1080p HD projection. For under $2,500 you get dozens of choices for 1080p HD projection. If I was going to invest a couple hundred square feet of my fairly expensive home to a place to really enjoy home theater and recreate the movie experience, then I would not be looking for the cheap solution, but the cheapest solution that recreates that experience.
5 years ago - that was 720p projectors for $2,000.
Now it is 1080p projectors for $1,000.
A good screen used to be $1,500+ - now a good screen can be had for a few hundred bucks, and a great screen for under $1,000.
You can literally get a full 1080p projector, good screen, and 7.1 surround sound with lossless audio and all your cabling for under $2,000 right now.
For under $1,000 you can go 720p with a DIY screen and cheap 5.1 setup.
I wouldn't recommend anyone not be using Blu-ray with front projection, and I certainly wouldn't recommend any projector which does not have a HDMI input on it.