Home Forums Hunting & Shooting Hunting Optics Spotting scope: New entry level or Old high end?

I'm looking at acquiring a spotting scope on a limited budget. In general which is better a new entry or mid level scope or a ~25 year old high end scope?

Example: Vortex Diamondback 20-45x60 vs Nikon Fieldscope II 20-45x60

Thanks for the input.