Your pounds (sterling) character seems to have printed as ??? (assuming you mean that the Zeph Lites are £180 and £210)
Given the Zephyros was initially marketed as the budget version of the Laser Comp, that does indeed seem a bit steep. It's certainly more than I'd pay to shave off half a kilogram.
PS: to get a pounds symbol in the universal ASCII character set, key in Alt +156