The factors that make people like high-end track components are stiffness and in the case of the chainring roundness. People prefer cranks with 144 bcd because there are more options for chainrings. They prefer bottom brackets that are more reliable and spin well. If you aren't going to be putting extreme amounts of torque on your chainring by say doing standing starts in a track race for example, the stiffness may not be that important. People for whom stiffness is important often go with SRAM Omniums but Dura-ace and Sugino 75s actually seem to be more popular on the track. People for whom NJS bling is important tend to prefer the 75s. I have no personal experience with any of these so I can't really tell if it could be worth it but it does seem like a lot of money to spend if you aren't experienced.