yes....bbut usually when people say a pesach food is great, they usually mean it's great for pesach. Nobody I know makes potato starch based cakes year-round
There may be other examples dissimilar to the one you mentioned. One example I can think of off the top of my head: Some people love their homemade Pesach mayonnaise, but wouldn't make it all year round.
In any case, to me it's most important for Pesach, and if so I'd need to designate the juicer especially as so.
Additionally, to get grapes all year round would be prohibitively expensive - for the purpose of juicing.
Somehow Bingo has this insane deal on cases of grapes before Pesach, that makes it much more economically feasible to buy them for juicing.
I don't recall to have ever seen such a deal anywhere at any time during the year.