Oh my yes, it surely does run the risk of becoming routine!! Just like anything that becomes part of life's "routine". BUT it doesn't have to. I am thinking of marriage (I'm single but still). Most couples get old and stale after awhile. But there are those few who stay madly in love with each other and the relationship stays fresh and vibrant because of the effort both make (I assume).
With the Lord's Supper, I find my pastor's way of presenting it helps. He does read the Scripture from I Corinthians, but he will stop in the middle and ask us a question to think about, or he asks us to share what it means. Then he continues. By not using the same exact liturgical sentences for the entire celebration it keeps it fresh. And we do it different each time - sometimes we get a partner and give communion to each other as pastor leads. Or families go together. Or we all do it up front (if small enough group). Or at our seats together.
Then there are those awesome things in life that NEVER get old no matter how often you do them. Sorta like me with my house. I LOVE the way the previous owners fixed it and even after 10 years I can walk through it and be totally amazed and love it! I can design to keep the Lord's Supper that way - if it truly means to me what it's supposed to mean, too.
Sure, there's a risk with repitition, but it's not a given. So I'll work at it. I won't LET it become meaningless ritual.