Their croaks animate what would be otherwise boring evenings. Tú-kôh, tú-kôh, they vocalize and will make us scramble for flashlights to find them and watch their fascinating colors. Scientists have been trying to study and mimic their dexterity in the hope they can micro-engineer products using similar anatomy. Velcro was inspired from a shedding dog, and now self-cleaning windows are being devised by observing lotus flower behavior (which we incidentally have in the garden too). Bio-inspired engineering is the way to go, and we may start seeing our housemates in a totally new light.
So please, legal or illegal traders, just let them be.