I can remember that feeling - where every new style of area makes you realise that it's a fun sport, and worth doing (even Black Mt did that for a while). Amusing reading your comments in comparison to those who've run at Glendale more than they care to remember ...
It is quite amusing - there's definitely a 'grass is greener' factor, but I think I'm being quite objective in saying that areas like this shit on almost anything in the UK. Even Blackie would get used for a national event every year if it was in the UK. Glendale was tough and so had massive boo potential and was no skip in the daisies, but I thought it was tough in a good way (rather than a windblow, mud, brambles, unmapped rock type way) that made it difficult.