Yeah, I know what you mean, price of the filter isn't an issue, I normally use the K&N which varies between £10 and £15 (not the cheap Fran rubbish) just not a nice job to change the filter, always go in from the top but is like a bloody rubix cube to get old one out and new one back in! Not to mention bruises on right arm. I have left the filter on before, so oil and filter change then after 10k just change oil, then after another 10k change both.