worth every cents if u have a Full HD projector with Full HD screen setup.
I've sold a HDMI Ultimate by VDH to a customer who uses FHD PJ + Screen (costs him around 50K on PJ n screen). Noticable improvement on image stabilization and noise reduction. That cable costs him 2K a piece but he's happy it improves his PQ.

I've compared china made (grade A) hdmi cable RM350 with VDH (made in EU) RM810, and PQ wise, noise really reduce a lot up to 50%.

Good HDMI cable doesn't only improve PQ but it is more realiable if compared to oem cables or lower quality cables that you get free from TV manufacturers. Especially if u r connecting to AVR n doing a video upscale, there will be problem at times when doing low grade cables where u lose signal on video or audio.

Another thing of getting reputable hdmi cable is when u can't afford it to fail especially if u have concealed it into the ceiling. I had a customer who spent 20K for his ceiling with his low grade hdmi that he paid RM500. in the end, the cable got problem with video signal after 5 hours of usage and he asked me to replace it with VDH n it works perfect but now he has to run surface wiring bcoz he can't remove his 20K russian pine ceiling

So, if u wanna do it..do it right n do it once. spend a bit more on cable sometimes to avoid trouble in future.