It's a double-edged sword, I guess. On one hand, experienced specialists are reliable workers who can handle many tasks, but on another hand, they are more expensive and supercilious. Sometimes is better to hire a young mind with fewer demands, because one day they become experienced too. Also, it trends change rapidly and programmers have to learn something new permanently. So if you're experienced it's well, but on another hand, you have less free space on your "hard drive".