Not sure how they compare price:volume ratio wise to the Luxardo cherries you saw, but imo Fabri are superior.

https://www.amazon.com/Fabbri-Amarena-Cherries-Syrup-Ounce/dp/B01MRV9AB8/ref=sr_1_3?crid=1E83P4V3BUWRC&keywords=fabbri+amarena+cherries&qid=1555210418&s=gateway&sprefix=fabri+am%2Caps%2C370&sr=8-3