so few churches acknowledge singles in light of 1 Corinthians 7: 6-9 is this an oversight? In the New Testament (Matthew, Mark, Luke, John, etc.,) we really don't see Matthew &amp; Rose, Mark &amp; Betty, Luke &amp; Beatrice, John &amp; Sally, etc. 

Why do churches put so much emphasis on couples, inferring that singles who have chosen celibacy really don't have a place (of course unless they are teen or twenties)?

I gave my life to Jesus at 16, and now am 61, and chose a path of singleness, according to the ability God gave me. I am confused because there seems to be such heavy emphasis on couples (nothing wrong with couples; I had extra-terrific parents for example). However, it is hurtful to feel like singles are the "low end of the totem pole"in Christian service and responsibility.

My parents had two girls (one married, and one single...me).

Do pastors cater to couple images because they presume tithing is higher? Is there cultural etiquette persuading the church more than templates of the New Testament church?
Churches/Pastors should never discriminate or cater to any specific group. This is especially true with a group that appears to be elevated in the heart of God.

The Bible speaks of a group, yes those that Paul identifies with: 


  1 Corinthians 7:7,8 For I would that all men were even as I myself. But every man hath his proper gift of God, one after this manner, and another after that. I say therefore to the unmarried and widows, It is good for them if they abide even as I


How amazing that this group would be shunned as less significant.  It does not appear that this was always so.  


  Isaiah 56:4,5 For thus saith the LORD unto the eunuchs that keep my sabbaths, and choose the things that please me, and take hold of my covenant;Even unto them will I give in mine house and within my walls a place and a name better than of sons and of daughters: I will give them an everlasting name, that shall not be cut off


Jesus speaks to this same group:


  Matthew 19:11,12 …he said unto them, "All men cannot receive this saying, save they to whom it is given. For there are some eunuchs, which were so born from their mother's womb”.


Who are the eunuchs spoken of by Isaiah? Are they those to whom it is given, those born to live a celibate life?  Are they those like Paul, unencumbered by a physical marriage, wholly united to Christ?

This group should be elevated, set apart, and sought out for their insight into the things of God. 

We are in an age where "herd mentality" is very strong and unfortunately a celibate life in an age of hyper-sexuality is not likely going to be understood.  Rest-assured, your Heavenly Father esteems those so born.