well, those2 armbands rarely see a buyer. i don't even know who would pay me 30-40k for one. and the beard sells good at 100-150konly. fr more you gota be extremely lucky.
on the other hand a full 512 body set is a good investition becasue its price does't go below 310-320k. you can use it for as long u want then sell the pieces individually and get even more, like 340-360k on it.
my offer stays for as long i own 100k