Go for a cheap laserjet. You won't get it for the price you want to pay, unless you go for a reconditioned one. The toner cartridge that comes with it will last for ever at the rate you say you use it and it will NEVER have clogged jets.
I resortes to laserjet several years ago when I found that I was using more ink in the cleaning process than I was making prints - I've never regretted it.
Alternatively, get rid of your printer completely as you clearly don't need one! On the odd occasion when a hard copy is required, pop down to your local library or Internet café.