[Yugocean]

Buying pre-cut fruits or vegetables lets you know that what you're buying isn't perishable and saves you the time it would take to cut them. Still, it is a waste of money.

1) Cut fruits and vegetables can also be chemically modefied from the inside; many bad companies add special chemicals to prevent them from spoiling for a long time.
2) These cut materials come in plastic packs, which contaminates their properties apart from taste.

Unhealthy substances are not good for your medical budget, plus you have to put your employment on hold if you get sick. So take care of your health.

[Netherrealmer]

There are fruits and vegetables though that are hell to cut and peel like Jackfruit and coconut.