money wasters

Hello Tom Hardware Enthusiasts I had a question in terms of older CPUs.... Are the 1st and 2nd gen i7's really worth the money (In 2020) or no they are not, because I see all these "Gaming PC's" that have i7 2600's (i7 2600K) and i7 920's (and the i7 930, i7 950 and i7 960) but I am not sure...