eddie its an investment to say the least. Even if there were 100 people coming on here saying your good to go I would still form your own opinion by spending some time reading through all the posts and different problems here. Theres a few posts floating around about people that havent had any problems at all and then theres people that have had every problem in the book happen.... twice
I'll have to disagree on your last sentence, the issue is on any truck,car,PC,ATV,ect forum, people come to these forums because they have issues with there stuff and need help to fix them so your gonna see alot of issues with a product.
To OP, read up on the 6.0 as Chango said before you make a decision. If you decide you would like another make (dodge,chevy,ford) do the same with them. As already mentioned, your buying a used vehicle and they ALL have there issues.
Here is some more info for you to read.
Things to consider about owning a 6.0L
2004 F350 CC DRW King Ranch
X-3 tunes by DJ'S,QT,GH,ID. Gryphon FICM tunes, ARP studs,Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,AD2,Snow Perf stage II,EGR delete,4" turbo back straight pipe,S&Bintake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv.,Billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,17" LCD TV/DVD,Cobra 29 Nitewatch CB