Why is Juve’s stadium so small, by the way?
cause it's cheaper to build,maintain and fill.
As other said Delle Alpi was most of the times half full even when the team had the best players possible (Zidane,Del Piero,Davids,Nedved and so on and on) so they didn't want to risk to build a cathedral in the desert spending much more to build it.
Some argued that Delle Alpi was mostly empty due to how shitty it was to watch a game there and so full only for big games but then when you check how much other teams spent to build larger stadiums and how little Juventus (Exor) spent to build Allianz Stadium I wouldn't blame for their choice.
The only downside is that price for game and season ticket skyrocked over the year.
In 2011 the cheapest season ticket was 275€ nowdays 690€.
If the stadium was let says 60-70k seats maybe prices would be lower for average fans.
Specially in a country like Italy that struggle economically.
It's madness how Juventus tickets price policy goes for a country like Italy.
When you have Germany with greater economic income from workers but much cheaper game and season tickets!
Seeing Serie A always half empty stadiums and with nutty priced made for milking fans.... specially from smaller teams it's so dumb...