I don't begrudge anyone their particular form of worship. If it brings them closer to Christ, then I'm all for it. However, for me, nothing can take the place of the Word/Eucharistic Liturgy. It takes me to a special place, a state of being. I'm gifted with a unity -- with God, the Church Triumphant, the Church Suffering, and the Church Militant -- that I otherwise cannot achieve in any other manner. It's truly a window to Heaven that is beautiful and moving. I don't suppose God would reject anyone's sincere worship, but I feel the Word/Eucharistic Liturgy is worship
worthy of Him. When I attended my first Catholic Mass I felt like I had come home, "THIS is worship and THIS is where I must be." I'm pretty sure I'd feel the same at an Orthodox Divine Liturgy as well.