I will clarify first, that I don't go as regular as I would like. Like I am sure with many of us, for one reason or another there are times when things just seem to come up. Regardless if it is someone sick, poor planning of time, or just worn out, it just does seem to happen.
However, I do feel bad when we don't go regularly to all services as a family. A lot of people on this thread seem to make it about what is important to them and how they feel about it. But in my opinion the bible is very clear in Hebrews 10:25 that we should not forsake assembling together. Obviously if God instructs us to be there it must be better to be there. Maybe not always easy. but sounds like always better. I have to say that I cannot think of a time were even though I almost didn't go, or didn't really feel like it, once having gone, not been happy I went. I try and remind myself of that when it seems like it is hard to "squeeze" in.
Another reason I believe we are instructed to go is found in the verse just prior to verse twenty-five. In Hebrews 10:24 it tells us to "consider how to simulate one another to love and good deads," Then it goes right into verse twenty-five instructing us not to forsake our assembly together. I believe it is not just about us, and what we get out of being there. While yes that is important, I believe many times by going to a Wed. night service or the Sunday evening service, I might also be encouraging others. God knows we need each other. He instructs us to be there when we assembly together for both us and the others.
Once other thing I think of when I find it hard to make it. I remember a Missionary once showing us slides of some remote church. I don't even remember where I think somewhere in South America maybe. But what stuck in my mind was picture of people that had walked fourteen hours in the mountains just to be able to hear the word of God preached to them. Then had to walk back fourteen hours again afterwards. In comparison usually anything hectic we have going on gets put in a proper perspective when I recall that.
But I do agree it is not always easy, and I also admit I don't go to all services as regular as I would like. Something I have to pray about and work harder at. I would only add to the original OP, that if you do go to many of the other services, and go with the right spirit of heart, and you consistently still get nothing out of it, you might want to consider looking for another church.