Diagnosing an electronic fault can be a complicated task
Long gone are the days of just replacing a tube that burnt out. Todays electronics are far more complicated and require specialized skill & equipment to determine what failed - if it's not obvious. Sadly , we've become a throw away society. Many times those devices can be fixed for a reasonable price.
ERS is owned by a Navy Vet trained in electronic repair and relies primarily on referrals for business.
Customer satisfaction is always the ultimate goal.