I think the demand for 76 key arrangers (or even 88 key weighted all in one arranger workstations) is bigger then ever, but only in the top class boards...
Overhere in europe, arrangers have a broader market share then synths..... And i personally can't just imagine that people can work with only 61 keys...after having tasted the possibilities of 76 keys or more... I can effectively have 3 zones on a 76 keys board.. Or even have a better range when playing piano style...
Ever after switching from a 76 key GEM to a 61 key tryos i have been seriously missing those extra keys..
But you might be right Ian... My vision might be tainted because of my own experience, and many people like me stick to 61 keys, because they allways have had 61 keys and don't even realise how 76 keys really makes a differenece