To the original question: No Image should not do that even if they could.
First of all the notion that many creators just get "bored" and that is the reason why they do not finish comics or have delays is redicules. I would really like to see some actual evidence of this. As stated by other many creator have come out and explained the reason why they some times have to take brakes. Often its the fact that they simply do not make enough money at first doing Image comics so they have to take a job at Marvel or DC (Or in some cases other types of jobs) to make their rent. If you as a supposed fan dont get that I dont know what to say. Sometimes its for Health reasons which some creator has also been open about. Sure some do it because they are lazy, but that this is supposedly several people I have yet to see some actually post evidence of.
The fact that it should be such a big problem for fans I really dont think either or that it can cost more money for some reason is not really something I see as a huge problem etiher. Sure if you find more series to read while a series is on hiatus then it could be a problem but just dont do that then. I have no such notion that I "have" to read the same amount of comics each month. I have a budget and I plan it out. If a series do not come out that month well then the money I would have spent on that either goes to another series/ trade or is saved.
The one problem I do agree with is for the comic store owner. Not being able to Count on a specific issues sold pr. month can be a huge problem for those stores that live month for month.
But overall I just dont think this is as huge a problem as people make it out to be and some people should really read Neil Gaimans views on entitlement:
http://journal.neilgaiman.com/2009/0...nt-issues.html