If you got 8 years out of a 240 gallon you paid $879 for, I'd say it was definitely worth it.
No freakin way.
When you have 8 years into building a tank, growing coral and building up a happy community of fish, then to suddenly have to tear it down, in a semi panic. When you see the seam leaking, you have to ask yourself, is it going to have a catastrophic failure? Any minute now? Will it hold for a couple days, a week?
Gather up holding tanks, get extra equipment to house and maintain everything until a new tank can be bought/built.
New tank was about $2k in the same size.
You tell your spouse you can use all the old equipment. Well that was a lie.
You know some new pumps are going on that baby.
So in my case $3k later,,,,,,,,,,,,,,,,,,,,,,,