The second reason is the singers who are getting recognition are trying to make hay while the sunshines. So they are spending more and more time in singing by conducting shows and concerts. This is making them busy and not able to give time for these recordings.
The next reason is greed. The singers as they get popularity, they are feeling big and increasing their rates for singing. When the talent is available and that too at a lower rate, why these music directors will go for costly people.
These days the demand for singers is coming down due to the availability of talent. These days the names of playback singers are not even shown in prominent place on the screen when the titles are shown.
Nice to be in ISC and feel the difference.
"Do not give up, things might not favour you always"