Absolutely. I hate hate hate the guys that deposit $300, bet a couple games on the weekend, then ask for a payout, and do it all again two weeks later.
Have a customer that leaves quite a bit in all year round and i warned him today about it. He has terminal stomach cancer and could go any time. i don't know how he could get his money if he goes. his wife knows nothing.
I always leave something in...rarely go more than a week or so without at least a little action. I do float between a few different books though...always request a payout when I am a % above my deposit but I tend to leave the original deposit in place.