Hmmmmm......
I fly 30-40 hours per year total, so I'm quite marginal in terms of currency. Actually used the IMC rating because I had to: never. Flown in actual IMC because I could (including VMC on top): 3 or 4 times. Flown IAPs for practice: 3 or 4 times.
I regard that as not quite enough for currency, hence my flight on Friday. I struck lucky with the weather: I'd expected to be on foggles for the trip. That said, I found I wasn't as bad as I'd expected.
I, personally, enjoy IF. I'm not sure that many people do, but I like the intellectual challenge. I keep my hand in with IAP profiles and situational awareness by flying procedures on Flight Sim - the default 172 is great for NDBs, for example, as long as you put realistic weather in, as (like real aircraft) it doesn't have an RMI. And you can look at the GPS or the 'flight analysis' screen (even better, as it's animated) to watch your horizontal & vertical profile. The GPS does a good job of painting your holding patterns on its screen, too, so you can laugh at your entries...
But I'll definitely be renewing the IMC next year. After all, my SEP renewal comes up anyway so I might as well take the IMCR test which will count for both.
Flying now from an RAF club, though, which requires 42-day currency for IF, i.e. a flight 'using the privileges of the rating' within the previous 42 days to qualify for flight in IMC. Not sure how they will define that, though: SVFR in 9500m visibility would do, after all...
Tim