I'm having to buy a new [15"] MacBook Pro in a hurry after wrecking my last one unexpectedly. Insurance pay out is involved.
When I got the last one, there was no High Resolution [glossy] screen option. Part of me says go for that as there's a bit more screen "real estate". On the other hand the system fonts can be small enough already and High Resolution will make all the system stuff appear that much smaller - as well as fonts in some applications. My eyes aren't what they once were.
On the other, other hand, the jump in resolution is maybe not so much.
An attempt to make a comparison by going to the nearest Apple Store on Friday didn't help so much as the only high res screen they had was the 17" matte ["anti-reflection"] which I'm not considering at all.