it's depressing when fans have to say an entire album by an artist they like -sucks-, just to get some odd point across. the album didn't -suck-. you, personally, did not agree with how it was produced, and the route it took musically. i was sucked into thinking that Begin to Hope sucked as well, until i stopped bitching about the quality, and started listening to the songs without a veil of angst cloaking my ability to absorb the meaning behind the music.
she did something you didn't like, got a little commercial time, and is actually making money. she didn't lose any edge. she gained a new perspective, and test-drove some ideas that the old crowd has deemed sacrilegious to her good name. i think that old crowd just hates the fact that Begin to Hope is her first popular album, and it involves testing new ideas, and new sounds, which modify her overall tone.
i also agree that selling out would be sticking to a sound your fans like, instead of being your own person, and trying things your fans are probably going to hate...until they get over it.