I have had 15 or so glass tanks from 55 up to 220. Except for 1 they were all brand new. And except for the one used tank they all ended up failing and/or leaking all over the floor.
In fact I am standing in a few inches of water right now as my 150 failed at 4am and I am still cleaning up after it. It too was a new bought tank only 2 years ago. While the warranty of these tanks was always honored I have say I could care less about this one getting replaced as I will never own a glass tank of any size ever again.
If youre going to get a tank larger than 75 gallons I would say get it in acryilc. The chances are far less of an acrylic tank failing (well made that is) than any glass tank made by anyone. JMO