I've had a few colour laser printers (samsung and Lexmark) over the years. They go through toner a lot quicker than you would expect, and faster than a typical mono laser, plus the refils were often as much as the printer. Lexmark was the worst of all, with poor reliability and excruciatingly expensive toner. Samsun was OK but print quality wasn't always as good as one would like.
There's 2 ways to pay for ab inkjet printer: up-front or via cartridges. Epson ecotank printers are great, but about £175 upwards. The least bad value way of printing is to have one of the deals where you pay a small fee - say £2.99/month - and you can print 30 or 50 sides each month. As the ink runs out they pre-emptively send you replacements. We had this with both Epson and HP, but HP printers tend to be troublesome, and I'd recommend Epson instead.