It has never been easier or less expensive to add the latest avionics innovations to your panel - even if your airplane is 50 years old. The big change in recent years is the availability of modular options at lower prices. It's no longer a choice between 1970s-era analog instruments and fully-integrated glass cockpits costing over $30,000; the latest equipment from Garmin, Aspen, Appareo, and others offers significant upgrades at reasonable prices. Here's a compelling example.