TX, UT, IN are safe seats even with retirements, no need to invest money there.
That's a really crappy way of thinking. Indiana has one Democratic Senator already; it's not impossible to get another one. Utah could run either of the Matheson brothers and probably win unless the Republicans could pull someone really great out of their bag. And Texas is not as Conservative as people want others to think. It is somewhat likely that we could win a Senate seat in that state--I mean, cmon, North Dakota has 2 Democratic Senate seats!