You're not alone in not getting to many cons (anymore). I regret not getting out to them, myself.

I am grateful that at least some of the filk cons do live webstreams of their main programming. Being sick last weekend was alleviated greatly by the stream from the UK filk con. The next step is two-way livestreaming, though that becomes MUCH more complex. Or possibly video, which is probably simpler bur requires hugely more bandwidth.