Terrariums, your opinion

[SaIiLdVaEnR]

Do you prefer the all natural look or the "if it works well keep it" look in ornamentation and set up of your terrarium? All natural being all real plants, all natural substrates, rocks as hides rather than the stuff bought at pet store etc. and functionality being for say chameleons, fake plants, no substrate and instead newspaper or wood shavings? In short, do you prefer asthetics or functionality?