Like the:

buy 'em and put 'em out of business
or
attempt to buy 'em, fail, and then put them out of business buy selling same product at a loss, until smaller company runs out of cash.

Microsoft are great examples of both approaches (which are valid business decisions).

Paul.

Paul Haigh, Reg. 4120
(mk1) 6GB, Blue, 00254
(mk2) 12GB, Red, 00357
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Paul Haigh, Reg. 4120 (mk1) 6GB, Blue, 00254 (mk2) 12GB, Red, 00357