Sloppy Proofreading

The novel I am reading now contains many errors. In the first few pages, the name of the neighborhood that the main character moves into is spelled two different ways, alternating between the two. The name of another important character is also spelled two different ways. There are other annoying errors, such as an extra space between the last word of a sentence and the period. I know that publishers have had to cut costs, and that there is much less hands-on editing going on than in the past. And I know that at the proofreading level, no matter how carefully a book is proofread, errors can creep in. But there shouldn't be as many errors as there are in this book already, when I am only a quarter of the way into the book. The publisher is a longtime, well-known and respected one (W. W. Norton), so this is no fly-by-night outfit. I have to say, these frequent errors bother me. The more errors I see, the more they bother me, to the extent of interfering with my enjoyment of the novel. Am I being too picky?