Real wasabi paste sounds like a poor value, wasabi doesn’t age too gracefully when grated and you’d presumably pay a markup for the packaging and grating
For those who live in areas with good Japanese grocery stores, I highly recommend looking for some rhizomes and grating it at home. Super easy, less than $10 for several servings, and lasts a couple weeks. If anyone is interested but doesn’t wanna Google it, feel free to reply or DM me and I can send my grater/process.
There are a lot of foods that aren’t quite as good out of their home country, but American grown wasabi is excellent. I’ve had someone tried to gatekeep me but like, I coincidentally am very into sushi and am reasonably friendly with a couple ***/Tabelog gold sushi chefs that I visit when in town, some of the best in the world with access to the highest quality ingredients. I’m not eating the wasabi directly but I can’t tell a difference between theirs and the American one from half moon bay. It’s definitely worth trying if it’s available in your area, you aren’t missing anything by doing it yourself and it takes minutes.