So I'm going off to university, and I've got a total budget of $2500 for a really nice computer for modelling/gaming/etc, without peripherals. My parents don't trust me to build it myself, and want me to go with a custom builder, such as CyberPower, etc, despite the fact that I've told them repeatedly that this runs more risk and costs me more performance/dollar. Any suggestions on how to convince them otherwise?