I LOVE the look but it has always astonished me that glass tile is so expensive. Glass is about the cheapest thing to make on the planet. It's made of sand for heaven's sake!
Here's some glass tile from reycled glass that is a bit more reasonable than most.
Make a subtle or bold statement with Eco-Friendly Flooring's glass tiles crafted from 100 percent recycled glass. The post-consumer and post-industrial glass is crushed, mixed with metallic oxides and poured into molds to produce a durable, translucent tile. With hundreds of variations in color, style and finish, the pieces are ideal for backsplashes, countertops and showers.