If you want to make a fair comparison in price/performance for similar sized motors:

Medusa 36/70: $123,95
Neu 1415: $189

I'll be trying my first NEU motor soon. My 80mm medusa is somewhat dissapointing me. It has a lot of power, but gets hot very quick. It could be a faulty motor, but Medusa isn't replying my emails. Also very dissapointed in cs...