Reader Angst....Genre Is Important!

This could just be me but when I pick a book that promises to focus on a particular "plot/theme type" which in effect would help indicate to the reader its genre, I expect that I should able to depend on that guideline to help me make the right decision. There is a trend I'm picking up as I read ARCs and some of the self published books which indicates that genre is not something that is always considered by the  author.

I'm having a bit of a problem with this because when i read a book blurb and it indicates that the book is oriented towards crime fiction, i expect a read with crime as the major plot, this should go without saying. If its supposed to be about romance I certainly want love and gushiness and all related feelings floating out of the that story. 

When I asked one author I interviewed a while back at my book review blog why his writing is difficult to pin to genre (please let me just say that this is not a rant against Joseph) he explained that "Authors who try to confine their books to a specific genre make their books too formulaic. Take for example romance novels. They all end with a tidy happy ending – not very suspenseful." Very strong opinions and I note that he said so again in a recent interview at Komz Reviews so as a writer and individual he clearly does believe in this. 

I  as a reader however (one who is all for writer's creativity) am finding it quite disconcerting and as with a self - pub I'm currently reading, misleading when a book promises to read like a Jonathan Kellerman only to find a Harlequin plot in there with a psychological thriller sub_subtheme thrown in intermittently. Quite frankly I find it quite painful to read such books because I keep hoping against hope that if I persevere what I imagined the book is about, will eventually come through and it becomes a "read two pages put down and pick it up again a week later when i'm bored" story.

So all I'm saying is, author I don't mean to prescribe your writing choices and i understand that you want to explore your writing vistas uninhibited but please do bear in mind that I, the reader (and I imagine you want me to buy and read your books after your labor) have interests and expectations. I buy books that promise to meet my reading interests, not because I have loads of cash that I have nothing to do with. Genre classification helps me in making those choices. 

So can you confidently say that when I open the pages of your book I will get what you promised on the cover of your book that that I did NOT find in the general fiction section?