Lidl will have these nubulisers instore from Monday 06/01/14 for £29.99 which seems reasonable.
Product Information :-
Vibrating diaphragm technology for high nebulisation and short inhalation time
Lightweight and compact design, weight (g): 146
Extensive range of accessories including mouthpiece, adults’ mask, child’s mask and more
Batteries and practical storage pouch included
3 year manufacturer's warranty