Agree on modest expectations.I have no idea why anyone would think the V30 is going to be better than the Note 8. There is no evidence that the V30 will have a quad DAC in the US. That floating bar they talk about is just a widget that a bazillion phones have already came with in the past. The previous P-OLED screens LG made had burn-in problems. The V30 battery is only 3000mAH. LG quality is poor. So on and so forth. Maybe it will end up surpassing expectations, but your expectations should be lower with the V30 than the Note 8, not higher.
The current rumors are that all V30s have the quad DAC, and we haven't really had a 2017 audiophile device, so the v10 buyers may be due to this device. I don't even feel right comparing the note and v30, two very different approaches to devices.