"Worth" is a subjective term. I can't answer that for you. The 2004 Pathfinder was the last year of that model's run, which is often a good thing as the new model "bugs" have long been worked out of it. As far as reliability, they were pretty good. When the replaced the VG33E in 2001 with the more powerful and technically advanced VQ35DE engine, there were a few more check engine light issues that went along with it due to there being a lot more sensors. Of course, maintenance history has a lot to do with the long-term reliability of a vehicle as well as body condition (previous collision damage or rust/corrosion concerns). Not having a transfer case and related parts that a 4WD vehicle would have makes it much easier to work on, especially under the engine. Shocks and struts aren't major issues; KYB is a good choice as they made the original equipment parts and they have a limited-lifetime warranty. The rear suspension link bushings are also much documented; when they split or break, the rear of the vehicle will tend to "wander" at highway speeds. There was a recall issued not that long ago in regards to corrosion at the bottom of the front strut towers, so it would be a good idea to check for any open recalls and have them performed.
This all said, it's hard to give an opinion on a vehicle one can't see for himself and work on. Your best evaluation would be from a good, reputable auto mechanic who can give the vehicle a thorough inspection and discuss any issues that are current or show evidence that they may be a problem down the road.