£150 discount on a £3k+ machine is a bit pants in my opinion.
That's like 4%, are other systems in the review section offer a higher discount?
Yes:
Iris - 6.5%
Orion nano - 10.7%
Devcon - 9.3%
Glacier - 13.0%
Nox - 13.5%
Ultima - 10.9%
Azure - 14.7%
A 10% discount will be ideal. I think there is also a maintenance cost to be done every 2 years, perhaps the discount is small due to the additional warranty expenditure in case there is an issue with the system
Only a 512GB SSD? No second drive?
If there is no second drive due to space then why not go for a larger SSD? That will be eaten in no time.