It's rose-tinted, so the confidence boost is worth it.
Thinking about that, it's impressive Vegeta was able to fight guys who presumably had powers over 6000 (Nappa's level, who I'd guess he trained with) while relying on his eyesight. Goku stopped relying on his eyesight at like 200BP, when he was fighting the likes of King Piccolo and then 23rd Tenshinhan.