SR Suntour forks are definitely the one to go for if you want to buy an affordable fork
new.
SR Suntour manufacture all the Marzocchi mountain bike forks now that the Marzocchi mountain bike brand are owned by Fox (only the motorcycle Marzocchi are still based/made in Italy).
The only thing I can say against the SR Suntour, and modern mountain bike suspension in general, is we don't need lockout or lightweight when we have our awesome engines.
Oh and they won't last 20-odd years because they have a different type of damping, separate from the lubrication (one reason why it's lighter).