These are probably the same people who always 'traced' instead of sketched in elementary school. Fat Horse Graphics R Us . One or two high quality images take a significant amount of download time. They'd better be worth the wait. Most are not.
Discretion is the better part of artwork.
Breaking up content is another solution. Decompression Chamber . Seems some people are scared to death the internet police might red flag their site if they don't compress their graphics enough. While sophisticated compression techniques are used to reduce an image's file size, some go way overboard and present an image of a horse that looks like he was stoned to death before he was pulled in ten different directions. Don't compromise the very asset you are presenting to make some un-horsey critic happy.