I have to agree. I have no real affection for them, my fascination simply lies with the sheer size of them! Over here we are still living in the past, all our sirens are of the "Carter" design still. I am aware that Klaxon, along with their mechanical sirens, offer a range of electronic sirens:
http://www.klaxonsignals.com/downloads/es_sirens.pdf
This link will require Adobe Reader, looks pretty impressive but the Alert tone leaves much to be desired...
http://www.klaxonsignals.com/sound%20fi ... trophe.wav
Personally, they lack any character that would create an interest for me. Opinions vary though.