Semi-OT: Have a mathematical debate about buying the 2001FP Dell

[Karak567]

I really want to get it. Currently I 6-table on my 1680x1050 laptop screen. My thought is put the 2001FP on a shelf above my laptop and 8-table between the two of them.

If I add 2 tables, maintaining a 17 % ROI at the 55s currently (probably unsustainable, but I have a decent enough sample size), that means it will take 24 hours before the extra two tables pay for it.

This is an easy decision, right?