While I understand budget should always be a consideration when buying truck parts and accessories (like seat covers), I will say that Knightsbridge Overland Seat Covers are made of durable 600 Denier Cordura fabric - the same rugged material used to make luggage - and are custom-made in the USA to last for years. You get value for the money.
I've been field-testing a set in my D90 for 18-months now and after some serious abuse - 3 2,500+ mile overland trips, dust, mud, extreme heat, a leaky top, several coffee spills and more -they're still looking like new.
If you or anyone else on the board are interested in purchasing a set of Knightsbridge Seat Covers, I encourage you to check out the online store at www.knightsbridgeoverland.com
D90 Source members will receive a 10% discount (enter code: S66PJIQ8SQEY) to offset some of the cost concern.