LadyPessaryPam ...a few observations:
So you don't like our currency, interesting....
That poster didn't say they don't like our currency. They said they didn't like the £ sign UKIP logo. Two very different things. I happen to agree, it's a crap logo and the party needs a more professional one IMO, especially now the whole Euro currency debate is dead and buried.
Don't be so ready to jump down people's throats if your interested in a sensible conversation, because you make yourself look less than sensible from the get go.
It helps enormously that I don't really care about the opinions of the resident lefties.
Again, just needless baiting. I'm a resident lefty. I happen to think UKIP are very good for democracy and UK politics, even though I strongly disagree with the majority of their policies. It's undeniable that the party has attracted oddball racists, homophobes etc (especially in the past), but then so have the Tories, so have other parties.
Why not just be positive about what you think is good about UKIP?
As to you original question, I'd say YANBU to want that to be the case, but YABU to state that it's the case without any further facts, figures, points Etc. But in general a largely one issue party is unlikely to be the future for a long long long time.
By Elections are not always an indicator of general election performance, and either way the natural growth of political parties means even if UKIP were to be the future (I'm assuming you mean general election victory by this?)...it would take many many many many years, and would have to counter the trend of ALL parties drifting to the left when it comes to social issues, something that IMO is highly unlikely to happen. 