Not sure of Arborite, but Abet Laminati offers the best colors I've seen. When you put Abet color chips next to those of Formica/Wilsonart/etc... it becomes more apparent. The colors are more subtle, cleaner, classier. Fantastic patterns, textures, metallics. But you will pay, man you'll pay.
Sometimes we show a client the Abet range, then they see the price and they look for an equivalent domestic plam and sometimes you'll come close if you're lucky.
Wilsonart is a great product for the money, though.
Not sure if any of these would be appropriate for you, but some are very cool: http://www.chemetal.com/