Am still tempted by getting a second dish but tbh i watch most of the races on my pc anyway so unless they geoblock the stream next year rtl online+ 5live might do fine for me for the races not on bbc.
I personally couldn't think of anything worse, having to watch a whole race sat at a desk or with a laptop on my lap. Maybe it's just me, but it doesn't beat a race on a big screen and a decent AV setup.