The OP didn't misuse the term "coin". In Bitcoin it refers to the value of a single input or an output. When the OP says "Plunking this much value into a single

The OP didn't misuse the term "coin". In Bitcoin it refers to the value of a single input or an output. When the OP says "Plunking this much value into a single coin seems like an odd strategy at best" they mean "Plunking this much value into a single unspent transaction output seems an odd strategy".