Let me put this clear.
Playstation 4 is by " Default " region free. As for the region classification, it's just an understanding from where the console is being purchased or coming from.
Pakistan is " Pal " which comes under region 2. So Starting from Whole of Europe till Bangladesh, we are under region 2.
Region 1 = Canada/USA
Region 2 = Pal/Uk/Middleast/Europe
Region 3 = Fareast ( Singapore/Hongkong/Malaysia/China )
Reg 2 J = This has been put into Region 2, but it is japense.
As for the Region buying consoles, to my experience, region 3 is a bit cheaper in terms on " Landing costs " means importing price due to some forex issues. That's why it is cheap.
As for Reg 2, this console is a bit pricing, cause in somewhat cases it can be claimed in pakistan, depending on which supplier u buy it from. But Reg 2 consoles get's easily claimed in Pakistan from Sony Pakistan with a warranty card and verifying the serial number with Jumbo Warranty Dubai, the best part of reg 2, that it can be claimined in some parts of Africa. The warranty card shows the countries, mentioning the claim.
Reg 1, you need to send it to Sony USA for claims. By Default All PS4 are in warranty, just the region need to be need for claims on your own expense.
As for the games, the are dependent over the subscription you need to play on. Mostly, after market sales, we need to have those subscriptions we can find easily in " Pakistan " , so we preffer
Reg All = USA
Reg 2 = UK
So these 2 countries are easier to make due to the currencies/subscription found easily anywhere in Pakistan. Hope it clears out.