I usually inform those that have purchased Monster products to try to avoid them due to their frivolous lawsuits for starters then move on to how there isn't any quality differences from Monoprice, Blue Jeans etc. compared to those that they bought, it generally works.
Having different price tiers of HDMI cables from Monoprice and Blue Jeans, there are build quality, flexibility differences and have different performance ratings over length.
For instance the 28awg HDMI cables from monoprice I notice minor sparkles in the picture when you sit up close. This is at a 10ft run which is a very short run for artifacts to show up in the picture.
