I, for one, do not, actually, object against congregational singing. But I would rather, in all honesty, hear a good, well-rehearsed singing in my parish or elsewhere, like I hear it when I visit Ukraine.
There is an alternative to paid choirs: simply encourage people to invest their time in meetings for the purpose of rehearsal. It is an extremely difficlut task, of course, because everyone is always busy. Yet, I believe it can be done. To encourage people, priests, deacons and lay activists should perhaps collect good samples of Orthodox liturgical singing (computer audio files, or CDs), and make them available for everyone in the parish to listen to and to appreciate.
I used to have a great singing voice when I was little, but then, when my voice mutated in puberty, I lost its nice tembre and strength. Still, I like to sing (sorry to say that - more when I had a dose to drink than before), and I would not object against singing in my parish. But unfortunately, the Greek chants that are recorded in our parish prayerbook sound extremely difficlult and alien to me who was brought up on the European Baroque tradition.