It is indeed written as you say; I suspect - but cannot confirm - that the author meant: > ... only a few people - professional software engineers - can "affor

It is indeed written as you say; I suspect - but cannot confirm - that the author meant: > ... only a few people - professional software engineers - can "afford" ... which would be the inverse. However, there is a case for reading as it is written even if it subverts reading expectations, as many (most?) professional software engineers do use COTS systems to publish and only a few have their own sites generated from scratch.