Never had a gravel bike from the but I’ve had 3 Voodoo MTBs. They were similar in cost to what you’re looking at.
The equivalent Specialized and Trek MTBs (same fork, drivetrain, brakes etc) were getting on for double the cost. I think a large amount of the price difference is paying for the name and marketing budgets of the bigger manufacturers. Ok, maybe the frame is made from nicer material or whatever but a) it’s probably not and b) does anyone even notice?
Halfords often have promotions on bikes. Last couple I bought were 20% off so it might be worth hanging on for a bit or maybe asking them if there’s anything coming up. Even if it was only 10%, it makes a good value bike even better.