Most old tracks are much more interesting. Take Spa for example. The current one vs the old layout. Eau rouge is about the only thing that is the same.
I would prefer the old track any day.
Whilst I love and appreciate old track layouts, I think Spa is one of the few where the 'new' one where the new one is not necessarily a downgrade; I love the old one, but with modern cars its terrible - its pretty much all flat out - whereas the new one provides a thrilling challenge for modern cars, whilst being plenty safe enough.
In 60's cars, yeah the Old Spa is truly terrifying, and a massive challenge, but its had its time. Just glad it wasn't someone like Tilke who was in charge of modernising Spa, it would have lost all character.