Help me understand rebuild vs crate?

Yes, building an engine and hearing your creation come to life can make you smile, cheek to cheek, or frown check to check. Your rebuild, your warranty. Blueprint gets rave reviews from several sources. You have to compare equally. How much is the additional cubic inches, extra horsepower and torque, and 30 month / 50,000 mile warranty worth? $1,000? Only you can decide. Have fun regardless.