Is it worth paying the extra?

It may well be worth you joining your local horticultural society if your allotment association does not have a discount arrangement with one of the seed firms.

My local horticultural society has a  joint order scheme with Suttons that gives up to 50% discount on seeds, depending on the size of the total order. There is also 10% discount on things like potatoes, onion sets and sundries. Individual orders are passed to the secretary and are individually delivered and billed but paid through the society. Postage is a nominal £2 regardless size of order.

Ours is only a local village organisation but we still put in an order for £1000 plus. I suspect that some allotment shops also get these discounts but keep some as a fundraiser.

I cannot beat these prices, even in end of season sales.

I know that Kings also have a similar scheme. Who else does?

I'd recommend Premier seeds direct,and the postage is only 65p

Thanks
Seeing as I have a free afternoon off work I can browse around. 

Having popped into my local, Maidstone, Wilcos today,  the seeds are out, and there is an offer on - depending on initial price, 3 packets for £2.50 or 2 for £1.50 (not sure if I've got that the right way round but it seemed a good enough deal)