It very much depends on context, I suspect - personally I think a bit of both (big rainforest house with free-flying birds AND pleasant little aviaries and exhibits dotted around the rest of the collection) is the ideal.
Mind you, if we are bringing finances into the equation (which I don't think we necessarily
should) it's worth noting that we are comparing a collection which made CHF 53,254,000 (roughly EUR 50,000,000) in 2018 with a collection which made CZK 137,118,000 (roughly EUR 5,500,000) in 2018

and therefore we can't exactly make judgements about what Plzen would or would not do with that kind of income! As such I really don't think this is the question people are debating in this thread