I've used laser printers at home for nearly 10 years now. I'm now on my second physical printer. I went through 3 toners on the first printer....which my wife used when she was self employed.
My newer Laser printer is a Samsung ML-2510 and I'm still on the starter cartridge. Which is only about 1/4 full when brand new...but I only paid like $40 for the device at Office Max. My printer is well over 1 year old at this point. The lower toner light is on...but I haven't run out yet.
I only use inkjets for printing color photos...and I do this rarely.