The growth is still good for a new hire. The law in the us requires 1000 sic. It's a minimum and a good one. You don't know what you don't know.
There's nothing wrong with being over half way up the list at a decent place with no 50 seaters when you're FINALLY legal to upgrade in about 2 years.
There is currently good movement and few lifers. Don't trust your crystal ball much further than that.