There will be a certain number of customers that will not consider a product based on the appearance of the product, no matter how well it performs.

These likely outnumber those that buy it because of the fact that the GUI design looks like it's from Windows 3.1 era GUI tools.

This also applies to the graphic design of the print advertisements for PG products. They haven't learned the 'less is more' approach popularized by Apple, and mimic'ed by countless others. Whether well-founded or not, people will associate graphic design with product performance.