Anybody w/insurance claims experience??

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State Farm has offered me 1000$ over the cost of estimated repairs to 'total' my beater. At first this seems like a good deal but it leaves me wondering if there will be some sort of stigma attached to the vehicle vin that would hinder future sales/insurance claims down the road. The title would stay in my name so it wouldn't actually be a salvage title but I'm in the dark concerning regulations & rules in a situation like this. I've told them I would just rather get the cost of damages & fix it but they're really resisting. My concerns are:
#1 If I take the check & repair the truck, then someone else from State Farm plows into me again will they(S.F.) pay for the damages or only pay the salvage 'buy-back' price since technically they already paid for the truck once?
#2 If I decide to buy something else in the future & sell the truck would/could there be legal concerns since they 'totaled' the truck?
Anyone have a similar incident to share that could shed some light on this or maybe we have someone out there that's in the insurance industry that could answer?? Anything reguarding this would be appreciated.