which make/model for humid and dusty condition ?

I know a digital keyboard or piano *should* be kept away from dust and moisture.

However, given the realities, which make / model is expected to better withstand high humidity and dusty situation ?

I am looking for two ranges, one around USD 250 and another USD 1500 in USA.

Your response is greatly appreciated.

Thanks for your responses.

Now, I have looked around a bit, and seems I'll have to choose from the Yamaha PSR series or the Casio ones.

Of these, which one could be better designed / made to survive better in a warm, humid and possibly dusty situation ?

Thanks again

I've found Casio to be rugged and durable and all around best for longevity. Yamaha generally has more 'realistic' sounding instrument samples. Casio excels in the rhythm banks and presets. You usually get more for your money with Casio, but most musicians seem to prefer Yamaha because 'they sound better.' Seek and you will find; Ask and it will be given to you; Knock and the door will be opened unto you.