Hong Nor retired a couple years ago, parts are very difficult to find for them, not sure how much value they will retain.
Generally it's best to sell a vehicle as soon as you are planning to take a break from the hobby because they get out dated fairly quick and you'll get more money for a car that still has parts support.
Of all the current race grade brands, the only brand that I know which still supports their legacy platforms is TEKNO.
1/8 Nitro is still fairly popular, but many clubs up north only race 1/8 in the summer, and then they focus on 1/10 indoor in the winter. I am fortunate to race at a club which hosts both 1/10 and 1/8 covered tracks year round
https://www.thornhillrc.com/