Did you even check whether the new shiny hardware you want to buy is worth it?
Yes, by my math, and current trends, the new hardware should pay itself off in under 3 months, at which time that money then would be reinvested into more/newer hardware. The unfortunate thing for me is that I was only able to afford the USB Block Eruptor from doing reward sites, and that is not making any profit whatsoever. Hence the need for better hardware.