I'd also suggest to take it...
Coinwarz suggested dash as the most profitable X11 coin:
https://www.cryptocompare.com/mining/calculator/dash?HashingPower=900&HashingUnit=MH%2Fs&PowerConsumption=217&CostPerkWh=0$35/month before paying for power, in my case a net loss of $7/month after paying for power.
Other algo's do a little better, but i could not find a single algo that would make more more than $15/month profit (after paying for power). If i had to bid on this item, i'd big $15*6 = $90 in BTC at current preev rate (shipping included)
If somebody wants to give you over $1000 (current preev rate), i'd say: make the deal before he/she changes his mind