Does the Roborock S9 MaxV have ongoing costs beyond the purchase price?

Yes, the [Roborock S](https://www.amazon.com/s?k=Roborock+S&tag=wehavethat-20)9 MaxV will nickel-and-dime you after purchase. Replacement mop pads and filters add up fast — the sticker price is a trap if you haven’t budgeted for consumables.