If you didn't have in home access to a washer and dryer (that is, assuming you do) would your opinion change?
It depends. If I can afford it then I'm likely to exclude any residence that doesn't have a washer and dryer. And if I can't afford it then I'm more like to use cloth diapers because then the savings is significant.
The upfront cost was $150 so that might be an issue for some.