Buy Desktop Pc Should I Upgrade My Computer Or Buy New Desktop PC?

Should I upgrade my computer or buy new desktop PC? - buy desktop pc

Ok I need help updating my 2006, Windows XP Media Center 1GB Max 4 GB of RAM, 200GB HDD, Athlon 64 X2 (W) 3800 + 2.0 GHz is how I last updated on chips?

Or should a desktop better?