I don't use 35mm much (apart from digital 5D2) but find different jobs/ projects depend on having the right camera available. I have shelved some gear and whittled it down to Mamiya C330s for urban street work, Wista 45DX with one lens for LF work out in the landscape and RB67 for studio colour work. GAS is a right pain sometimes but I keep myself safe from it these days by being poor!