Hardware & Technical Monitor and GPU purchase

[winterknight]

Hopefully, next month I can afford a new monitor and GPU. For a monitor I want a wide 34" 21:9 display and I prefer Nvidia GPU's.
But this is where my knowledge falls short. Should i go for 1080ti and "standard" monitor OR 1070 and Gsync monitor.

Can anybody help?

 

[JetsonRING]

I recently purchased a NVidia GTX 1080 (FTW ACX). I plan to purchase the ASUS ROG Swift Curved PG348Q Gaming Monitor - 34" 21:9 Ultra-wide QHD (3440x1440), over clock-able 100Hz , G-SYNC™. Currently (only) $1299 on Amazon. Then when the price of my GPU falls a bit I will get a 2nd GPU and SLI them.

My plan, for what it is worth . . .