Nintendo Switch Lite Handheld System Console, only problem is the right stick 

The seller did not pin down a precise fault. These are the common failures for this kind of item, with rough parts costs. Subtract the relevant one from the $54 margin to gauge the real spread.

Common faults for this model

• Joy-Con stick drift$12 to $30eBayAmazon
• Charging port$35 to $70eBayAmazon
• Won't read game cards$30 to $60eBayAmazon
• Cracked screen / digitizer$45 to $90eBayAmazon
• Battery$25 to $50eBayAmazon

Repair costs are rough parts estimates, not a diagnosis of this exact unit. Confirm the fault and your repair path before you buy.