Is this a no-brainer?

[UNC Nick]

Got the wife a mid-sized Pink MOP SS/WG Datejust for her upcoming b-day (thanks to those that assisted with the decision here) and officially started the addiction about 2 weeks back. I've been about foaming at the mouth to get one myself since then. I travel a lot and all that I've noticed on fellow First passengers in the air have been their Rolex's- a handful of Plat YM's, a couple of Subs, a few DJ's, one or two GMT's. I got the itch so bad for a watch that I even got temporarily hooked on a Omega Speedmaster Broad Arrow- until I actually put it on my wrist, that is...
So when I went back into the AD's this week to give them the shipping info for where to send my wife's watch (delivering it to our vacation spot), I thought that I'd go ahead and try on a Sub. Been wanting one since I was a kid, off and on for 15+ years now. The Sub was really the only sport Rolex that I knew of at the time. Let me state for the record that I am by no means a watch aficionado- I've had a Tag since in HS and haven't even worn that for almost 2 years now. When I got to the AD, I tried on the Sub and YM. Liked, but did not LOVE, the sub. YM was the same story; I think that the IDEA of a Plat watch was the part that I really liked as I wasn't personally crazy about the monotone scheme on my wrist. Then I saw the new GMT IIc. Put it on and was continually drawn to it. Something about that shimmering bezel and the polished center links just did it for me. Almost like a bigger sub with some flash. After talking with the AD about my potential 2nd Rolex purchase from them in as many weeks, they offered over 10% off, shipping to avoid tax, an additional 3-year warranty on top of the standard Rolex warranty, free cleaning and service with their in-house certified watch maker over the 1st 5 years, and 12-months 0% financing. I put a deposit on the watch and am now trying to decide is this DEFINITELY what I want to do. So, oh wise forum members, any advice or things that you feel I should consider here? Or, is this one of those situations that really is a "no-brainer?"

Any thoughts/considerations/ideas you've got to offer are certainly appreciated.