Wow, that got a bit feisty!
Vodka on its own seems a bit pointless to me as there is no taste. I like to drink things for how they taste not just to get drunk though if that is a by-product then hey. Horseradish is a gift from nature and flavouring the vodka improves both.

Once the vodka has infused then the horseradish will be used to make some horseradish sauce and also added to mashed potatoes. Horseradish on marmite toast is also a great thing. Nothing wasted.
Plus the vodka was £17 for a litre, the horseradish was £1.80 whereas a 70cl bottle of horseradish vodka is £28 so a saving of over £10 plus it tastes a lot better and hotter.
Would like to try a wasbi version but have been unable to find any fresh wasabi for infusing.
Update: looks like 200gm of fresh wasabi is about £40. Probably don’t need to use 200gm like I did for the horseradish.
The Wasabi Company | Fresh Wasabi