I have always said that every name is judged on it's own merits. Few generalizations ever really apply.
Folks try to use them to boost or buck a stated value or price of an individual name.
That only works if you allow it.
I have in fact bought names of those who went out of biz when they drop. Sometimes waiting 7 years for that to happen.
But only when the TM had been marked as abandon.
You could as well buy the name beforehand while waiting and do not park it or subject yourself to any additional liability.
Know that sometimes those trademarks have 'leans' against them, so there is other interest/liabilities you may have to deal with not showing themselves on the surface. Being a more complex subject, I will not dive into that, but know it is not always as simple as it seems. More info can be found in the state in which the trademark is held. Some states hold many TM's because many do not TAX the mark, so they are moved.
It may be news to some that TM can have liens against them. Part of a guarantee for banks who take uncomfortable risk.
Who would give up an established name ? Banks get comfort in that.
Since they have value, they are taxed on that value.
DJ Trump has leans on his TM. So there is a easy one for you to look up to help understand the process.
That will take you some time, but a good lesson if you are going to indulge yourself.
But of course, a lien on a TM, puts the name at risk if it is still valid even in bankruptcy process.
So, if the name had 'marketing value' at one time, you only need to ask if that is still true. Then judge it from there for value.
Just watch the hidden liabilities that may exist.