I think the 1080p fad will pass. After all it's fewer pixels than 1900x1200.
I'm using 1600x1200, and I want a significant increase in resolution before I think of upgrading (supposing nothing breaks <touches wood>).
1080p is good for watching films, but it's less than ideal for looking at text.
I think this guy is correct on this subject:
http://10rem.net/blog/2010/04/22/ran...ls-and-dpi-now