Yeah, if I had no HF radio I'd probably just use my little 140 watt
inverter or the ship' 1500 watt. These make no noise on VHF.
However, you want to run a computer for many hours a day, a 2000 watt
inverter is certainly overkill and will take much more from your house
batteries than is necessary to operate a laptop. The little power
booster is both silent AND efficient.