Complex sentence: However, most experts attributed the failure to retailers favoring the Microsoft Windows line, especially after the introduction of Windows 95, which was generally cheaper, and encouraged by manufacturer spiffs, advertising co-ops, and other promotion programs.
Split into simpler sentences: However, most experts attributed the failure to retailers favoring the Microsoft Windows line, especially after the introduction of Windows 95. Computers running Windows were generally cheaper, and encouraged by manufacturer spiffs, advertising co-ops, and other promotion programs.