Don't buy, make or eat crisps so can't say but I wouldn't waste celeriac on them anyway.
It's also nice raw with mayonnaise - especially the garlic version.
I have enough celeriac to do all of these things (while it is at its best - not through to Sep '19 - I don't have enough to match the lengths commercial growers can afford to keep them in the shops).
But beetroot crisps are a whole level above potato (and significantly better than parsnip too) so I need to try celeriac ones.
Unless someone who truly loves beetroot crisps can post to say celeriac ones are less lovely than potato ones...
Cheers.