Stanislav said:
Those NYC-based soaps may have had a lot of actors passing through who had either done some theater or aspired to do so, so perhaps the actors liked it that way as a good training ground.
Many of the NYC soap actors have had Broadway/off-Broadway/etc. stage experience during or before their TV roles. Douglass Watson (Mac,
Another World) was spotted doing a staged performance of King Lear in NY in the early 1970s and was cast almost immediately for the
AW part, which he played until his untimely death. Anne Meacham (Louise,
AW) had done several Tennessee Williams plays prior to doing
AW. Larry Bryggman (John Dixon,
As the World Turns) has been very active in NY stage work, being nominated twice for the Tony for featured actor in a play (Picnic, 1994; Proof, 2001). Ruth Warrick (Phoebe,
All My Children) had done Broadway twice before starting on
AMC and once afterward, as well as having a busy past in films. I could go on, but obviously not all the NYC soap actors phoned it in...there has been real experience behind many of their performances.