Premature wheel bearing failures.

Well iv added everything up and its gonna be around 500 bucks to replace everything. That is if they actually warranty the hub if they dont it will be more. I did new calipers pads rotors, coil springs, shocks front and back, sway bar stabilizer links, and new ujoints. Im kinda concerned about the control arm bushings too. But I will save that for another project.
Now I have to decide if its worth it? Can I get another 500 dollars worth of driving out of this truck. Lol
My way of seeing it is this. If i go buy a truck at the minimum im looking at probably 200 a month (used truck of course) so that is about 3 months worth of the cost of the repairs so if the thing will last 3 more months its worth it. I really want to get at least 2 more years. If I have to buy a newer vehicle now its gonna throw a huge wrench in the gears of my dart project.
I don't know if anyone here is following my other thread but my wife also needs a new car we have been looking at getting her a new jeep. When it rains it pours.