Recruiting in Texas as the foundation of your class if you are the head coach at UW is FS ...
However, if you can get a handful of players to supplement your program and/or get an elite player or two, then it's worth the effort if done in moderation.
@LoneStarDawg broke it down about right that you're either going to get 2nd tier guys or elite guys ... probably nothing in the middle. Right now, UW isn't in a position where they are going to successfully pull elite guys out of Texas. There's too many options for these kids in deciding whether to stay in state (2 currently elite programs there in TCU and Baylor, then the legacy that is Texas that still pulls rank in the state), head north to play for Oklahoma that is always in the national picture, or head to the SEC with both an in-state option in TAMU or next door to LSU (particularly true for kids from Houston). Add to that probably another dozen or so schools that recruit the area hard and for UW, you're not high on the pecking order at present. That's ok though for now.
For UW, recruiting has always been about recruiting in-state first and then California second. In-state, generally speaking, we're going to get a good number of our line players and elite athletes in the state. We will never be able to satisfy our needs at WR and DB in state and it is critical that we're in the hunt in California for those players. Where we can get hurt in recruiting is in years where there is a shortage of players on the West Coast at certain position groupings. It's in years like that where having enough in roads in a second talent rich area like Texas can help us (in the short term) stem the tide and still get at least depth players into the program.
The current path that UW is on is moving in the direction of being an elite program in the PAC. Should we get to that point and have the ability to sustain it, then we're able to get into living rooms that we otherwise wouldn't be able to and try to find that difference maker or two in Texas that is interested in winning championships, playing in the biggest games, and perhaps looking for something different than what he's used to. We're probably 3-5 years away from really being able to pull elite guys like that ... but I can see a day where that happens. We've seen high end guys from Texas head to Eugene ... outside of Nike, there's not a single thing that Oregon has that we don't offer something better.