Mark Snoeberger helpfully explains here why some preferences are bad reasons to leave a church, while other preferences may rightfully lead someone to change membership. This can include preference concerning preaching, baptism, communion, and music.
Of course, there will always be occasions in which believers, after careful study, disagree about what the Scriptures teach on several of these issues, or disagree mightily on the best ways to fulfill these revealed functions of the gathered church. In some cases (and perhaps more often than is supposed) the disagreements are small enough to tolerate. But at times churches who err in these matters leave the church’s work incomplete and its worshipers spiritually starved, bruised, dismayed, and discouraged—even angry at the despite they believe has been done to the person and cause of Christ.
In many cases it is quite possible for all involved to amicably and eagerly call each other brothers in Christ. But they eventually will come to worship separately, and should worship separately. And it is not (necessarily) because one party or the other has “made the worship experience about himself and not the God being worshiped.”