[wasmitnetzen]

I would question your priorities if you're trying to save on $4 heads for a $90 toothbrush.

[maratc]

There's a $35 edition of that toothbrush today, I got a similar one at $25 (iirc) on some Black Friday. $10 heads are an issue when $5 toothbrushes exist.

[JohnFen]

I would question your priorities if you're paying more than a couple of bucks on a toothbrush in the first place.

[Arch-TK]

My priorities are: Not wanting fillings.

The difference between using a tongue brush and an electric toothbrush (vs just manual brushing with and without a tongue brush) was so stark that I've never for a moment felt like £40 for a toothbrush with an annual cost of £11.20 for toothbrush heads has ever not been worth it.