Simplify the following text for a Grade 7 native English-speaking person.
Original: Some proponents of pipe organs claim that digital organs should be regarded as no more than multi-note hi-fi systems of durability no more than standard electronic equipment , in contrast to pipe organs that might still be playing without major rebuilding for many years . However , the high initial cost of pipe organs has limited their production , and all-digital and pipe\/digital combination organs now significantly outsell pipe organs .
Simplified: Some electronic organs ( digital organs ) are made to look and sound like pipe organs .