I think this is a personal question with no "right" answer, and it hinges on the question "What do you want to get out of Church attendance?"
For me, personally, I want the following things (not necessarily in order):
- I want to learn something new
- I want to experience some sort of conviction - that twinge of guilt that tells me I need to change something in my life/behavior/thought process to be more pleasing to God.
- I want to offer back songs and praises to the God I love.
There are some things I DON'T want as well.
- I don't want a message that's hateful or teaches hate (thank God a true Bible-teaching Church won't spit venom from the pulpit)
- I don't want "warm and fuzzy feelings" that do absolutely nothing to teach, instruct, or edify. (I can get that watching TV or a game when the Packers are winning).
- I don't want to hear the opinions of the Pastor when they conflict with God's word.
So for me, the answer would be that it's more important to instruct, because with instruction and truth, I get the things from my first list without the things on the second. For others, it may be reversed.
Some people go to Church to feel good, or because they feel they have to, or any number of reasons. Some do go, just to feel "closer to God". I don't know that there's anything wrong with that. It's just not my reason for going.
That said, addressing the use of technology in Church, I personally would rather take notes on paper in Church and look them up online later. First, writing things down in pen and paper tend to commit the teaching to memory, and second, if I had an electronic device handy I know I'd get distracted and miss something important.
In all honesty, knowing that the electronic devices are distracting, that it's less likely I'll pay attention means that for me, using an electronic device would be detracting whether I wanted instruction or contemplation.
Finally, I think it's rude to the Pastor to come in using electronic devices. He has no idea if we're looking up something he said, or updating our Facebook status, or answering questions here. For all he knows, we're completely ignoring him, and that's likely to break his flow of concentration, same as it would for anyone else. It's simply more polite to listen attentively, and taking notes the old-fashioned way is less of a distraction for him.