"Old Italian bike= collectible,even though they made crappy ones, too.
New one, actually made in China with spotty quality, and a re-licensed or a made-up, Italian style name= (perceived as) junk."

In today's market, with faster start-ups, it's going to be harder to quantify what you're buying.
Companies that have maintained a continuous output of bikes are correctly percieved as more likely to have control of maintaining their reputation for quality, even if they do outsource production.
A re-start of an old name is better than nothing only to the extent that the obsolete brand name has value such that the new owner loses value of the brand they bought if they build bad product.