Is allspice worth planting commercially or only as a garden curiosity?

Honestly, allspice in India is more of a niche or garden curiosity than a major commercial crop. Domestic demand is small and there is no large organised market the way there is for pepper, cardamom or turmeric, so a big standalone planting risks having no buyer. Where it makes sense is as a diversification tree in a mixed spice garden, a few trees alongside nutmeg, clove and pepper, giving a small extra product without betting your income on it. If you have found a specialty buyer or a value added use, a modest planting can pay, but do not plant acres of allspice as a primary cash crop expecting a ready market. Confirm a buyer first and keep it as a supplementary crop rather than the main one.