That’s right, a Microsoft MS-BASIC Interpreter floppy disk — for the original Macintosh 128k (1984) — sold for a whopping $74.95 on eBay. Auction page.
Original Microsoft 3 1/2″ disk. This is a very unique piece of computing history. This enables you to write Microsoft BASIC programs on a Macintosh! Very hard-to-find and much sought after software by Microsoft from 1984 for the original series Macintosh 128k M0001 system