I love my (relatively cheap) Epson R220. I bought it three or four years ago after my (equally loved) Epson 640 finally popped it's little clogs! But I did learn a valuable lesson....
Unlike Hewlett Packard printers (which have print heads in their cartridges), Epson printers have fixed print heads, and their cartridges are effectively little more than ink tanks. Although this tends to make Epson cartridges cheaper than HP, there is one MAJOR drawback. If the printer is used only occasionally, then inevitably the print heads will dry out and become blocked. If left for too long before cleaning, your printer might eventually be beyond repair (the fate of my 640).
Usually minor clogging will be detected early, either by substandard printing or a nozzle check. In such cases one (or sometimes two or more) head cleaning cycles will correct any problems. But the Epson head cleaning process uses a great deal of ink!
I can't afford genuine ink either. I use compatible cartridges with my Epson R220 which cost £4 on eBay (delivered) for a set of six. In spite of the price, the printing quality is excellent - and it's become very rare indeed for me to encounter further clogging issues.
Prevention is better than cure for me! What I've learnt to do somewhat religiously, is to make sure that I print (just one copy of) an image about once every week. I choose to print a sample image (which was once included with the virtualPhotographer plugin) that I'm certain contains the full spectrum of all colours. What I've learnt over the years, is that to (almost entirely) eliminate print head clogging occurrences, it is necessary for me to print this image about once about every 10 days in winter - but maybe once every 5 days in particular hot (untypical UK) weather. I've actually created a PaintShop Pro printing template which prints two (scaled down) copies of my image on a single A4 sheet, as well as leaving a space at the bottom for my nozzle check - optimistically labelled nozzle check ok :)
The only time I now encounter print head clogging is when I forget to do my routine weekly print. Printing my 'safeguard image' uses extremely little ink, when compared to that which is used for head cleaning. I'm only guessing here, but I reckon I could probably print 30 or more such pages (i.e. safeguard my printer for more than 6 months) at the cost (in ink) of my forgetting to do so one week - and hence requiring a couple of head cleaning cycles. At £4 for 6 cartridges I'm happy about 'sticking' with my compatibles!