I'm going to play devil's advocate, I suspect most will disagree!
I'm in the UK and I do go to our local Anglican church. Why? Certainly not for the in-depth teaching, but for the community aspect. Unless you have several local friends and families who all subcribe to the truths found here, it's going to be a lonely existence and what is more, you're likely to find your opportunities to share these truths are limited.
Our church is very inclusive, and yes, that means that plenty of the people who come aren't even Christians, and some would just about agree with some of the "nicer" doctrines but would baulk at anything harder to swallow. But I don't confuse our local church with "THE CHURCH", i.e. the worldwide body of true believers.
Interestingly, we had a recent Bible study evening about hell and so on, and essentially our vicar outlined precisely the truths found here as his beliefs! He has never openly preached about this (his sermons tend to be gentle, reflective, "thought for the day" stuff). I first found BT as I studied around some challenges given to me by a member of my church small group, who was already wise regarding UR. I have found several opportunities already to get fellow congregants thinking about these issues.
Finally - and this isn't quite the same in the USA I don't think - but we do have an "established church" in the UK. Even in a small village there will be a parish church, who's vicar also performs pastoral visits to the infirm and elderly. You can be an atheist with no family who has never been to church, but if you are dying and would like to speak to a vicar at 3am, there will be someone there for you. Personally I think that is valuable. And that means that if you are having a tough time, you move to a new town and you decide to randomly go to church, there will be an Anglican church nearby that should welcome you.
So one of the other reasons I go is because anyone wondering about God, "seeking" etc. is likely to head there as a first port of call, and I can welcome them, invite them to dinner, help them think about these things even if they're not even sure whether they believe in God or not, well before we start talking about deeper scriptural truths.