O I do love some of the Gaidhlig debate :D
Anyway I'm fairly well palced in my understanding of the subject, I live within striking distance from the Sabhal mor (Gaidhlig university) where the Gaidhlig mafia (yes they do blooming well exist - sadly) are at full front battling for Gaidhlig this and Gaidhlig that.
Here in Skye anyway it's mainly incommers (surprisingly many English, Americans and even one guy who would die from gaidhlig from Inverness who didn't even learn the language until a few years ago) who try and push the language down any Tom, Dick and Harry's throat, which puts so many including myself off the language.
However those guys are just extremists who were actually fighting to turn a local primary school into an delivering an education through the gaidhlig medium. Their argument - Statistically pupils who are educated through Gaidhlig medium do better at school - this is true throughout the islands and Highlands.
Also without being fluent in the language I couldn't get away with this - Thalla agus rach thu fhein!
Careers in gaidhlig are well paid right enough especially if you get involved in the media and TV which isn't difficult to get involved in at all, funnily enough I play a part on some SQA revision materials as a gaidhlig alien!
I can't talk for Inverness but Skye's economy absolutely thrives on tourism and we really need things around to attract tourists as we certainly can't rely on people coming up looking for good weather.
Sure the scenery is the main attraction for tourists is undoubtedly the scenery but the gaidhlig culture certainly plays its part in boosing independentally run businesses - which are also positively affected by the residence of gaidhlig students.
The language is actually paving the way for some people in my year to enjoy a career they feel passionately about by studying at the university, thus will have more a more satisfying work life and better salary - much better than being unemployed!
As I said before maybe some people's opinions on Gaidhlig has been adversely affected by the aforementioned gaidhlig extremists who try and drown us in the language causing you to be pretty damn annoyed which I understand and probably detest more so than you because I'm in daily contact with those sort, however I bite my tongue and feel the benefits of the language outweight the harm it causes.