Which monitor to get from Best buy Canada in this price range?

[99PCProblems]

Hi,

 

I have $500 in best buy gift card and want to get a new monitor to replace my ancient 21"... I found the following 3 choices for that price range they all have different strengths and weaknesses but I'd like opinions on each and recommendation as I have 0 experience with any of these.

-Acer 28" 4K 60Hz 1ms resp.time - TN
Model #: CB280HK bmjdppr

-Samsung 31.5" 60Hz Curved 1080p 4ms resp.time - VA
Model #: S32E590C 

-BenQ 27" 144Hz 1080p 1ms resp.time - TN
Model #: XL2720Z


Would any of the above even really be worth it over say a much cheaper older model like for example.  
BenQ 27" 60Hz 1080p 1ms resp.time - TN

Model #: RL2755HM

 

Or

Would it be worthwhile to ad an extra $300 of my own money to get something like
Philips 40" 60Hz Widescreen 4K
Model #: BDM4065UC

[XTankSlayerX]

What do you want to do with that monitor?

 

Are you a massive CSGO players or do you do colour correction work?

[Liltrekkie]

If you do any gaming 4k is gonna be hard to get decent FPS numbers. I'd look at the BenQ 27" 60Hz 1080p monitor, or the 144Hz version. Comes down to personal preference really. If you have the FPS to back it up 144 Hz all the way.

[99PCProblems]

This would be primarily for gaming ex. BF4, SC2, and general purpose work ex. spreadsheets, reading PDF docs, & scans of documents, word docs etc..