Comment by ivanhoe

I'm very much DIY guy and hate it when companies block users from doing whatever they want with their equipment, but this is a special case. User gets the discount from Sonos for recycling the old equipment, and thus user doesn't own it anymore. It belongs to Sonos now as they bought it back, and of course they don't want it resold half-price by 3rd party, it's a competition to their new products. To me it seems perfectly legit, as long as you get a discount for that. And the equipment can still be recycled and resold for parts, they don't block that.