Buying Grey Market Red Tag vs. Green Tag

[uncle_paul_hargis]

I'm looking online at places like Bob's or DavidSW, and identical watches can have significant price differences with the Red Tags as opposed to the newer Green Tags. I like things to be newer, or "better" or whatever, but I also want the best value I can get. The red tags are holding me back - am I over-thinking it? Is there a warranty difference? Or a certification difference?

I'm shopping for my first Rolex, and not looking for an "investment" piece with the hopes of flipping it some day. If I do, it will be because I no longer like the watch and just want to get rid of it. However, I am hoping to keep it forever.

Thanks for any help!