if i am you, i will not change for $500. it's more important establishing your own network in your current job. build good working relationship is more important than the mere $500 increase in your salary. last time, when i was in 30, i was offered $1k more and i jump ship, bad mistake i made...though with my outgoing character, i was still in touch with a director from my previous job, he was my job referee then. nowadays, i will meet him for lunch and so on.
Thanks nutbush, I'm staying put