I bought a bunch of submarine kits at 1/700 scale that were discounted in a model shop the other day, they were 3.99 each. Judging by the text on the box they are from China (Hobby Boss).
The ones I got were a Russian Kilo Class, the SSN-21 Seawolf and a JMSDF Oyashio Class. They're actually quite nice, with alternate sail parts in the kit so you can easily build them in surfaced or submerged configuration and a dinky little stand to display them on, and believe it or not, the screws in the kit are actually really well done, which surprised me at that scale in plastic.

Chock