heres my story. When i got my career job i purchased a Tracker. It was fine for what i needed it for. Then the bait, boat, rod, and reel monkey got a hold of me. My tackle, and overall drive for bass fishing out grew my Tracker. I needed to upgrade. I decided to give the Tracker to my father, sell my fun car, and buy a bass boat. I found a near perfect 2001 Ranger R81 VS with a Mercury 150. The price was where i wanted it. I got a "good" condition 18 foot Ranger, added 2 Down Imaging units, 3 brand new Die Hard batteries, brand new 82lb thrust Motor Guide, all seats were wrapped in new vinyl when i purchased. No way i could get that kind of value out of a tin. I bought the Ranger with all the mentioned modifications for 10 grand. When i bought the Tracker brand new it was 12 grand. There is no comparison between the two. I wish i would have saved my money buying the tin, and bought a great used glass from the start. Having said that, i was just as good as a bass fisherman in my Tracker as i am my Ranger. Its just that the Ranger is more comfortable.
It all depends on the waters you fish, money your willing to spend, and how much you use the boat. Its really hard explain. I feel that once you have a tin out in rough water, then fish out of a glass in rough water. You are going to take the more expensive glass every single time over the tin. But, if your fishing smaller lakes that you need to get into shallow water and big water is not the issue, go tin.
Having said that, if my father wanted a new boat. A brand spanking new Ranger Z520C would be what i would tell him he needs. Then maybe someday it will be mine.