VGChartz's Karl Koebke: "Disgaea 5 is not the obvious revolution for the series that its predecessor Disgaea 4 was from a graphical standpoint, but it does feature meaningful evolution of the series' gameplay, such that both series fans and newcomers should be able to appreciate this entry. Grinding has been made much more optional, which means that Disgaea 5 is accessible without being dumbed down. Expect onlookers to question why you would buy a game for your fancy new machine that looks like it could run on a PS3, but it’s unlikely to bother you much when you have months of superb strategy gaming to keep you entertained."
Amazon has discounted the physical PS4 versions of Disgaea 1 Complete to $27.99, Disgaea 4 Complete+ to $39.85 and Disgaea 5: Alliance of Vengeance to $31.95.
Play-Asia has reduced the prices on 8 gaming products including Collar X Malice for PS Vita and Disgaea 5: Alliance of Vengeance for PS4.
I only ever use Play-Asia for English-Asia imports anymore, it's too expensive to buy from them regularly.
Amazon has discounted the digital version of Disgaea 5: Alliance Of Vengeance to $19.99 on PlayStation 4.