I have won lately the 3000 Satoshis which is the biggest Satoshi prize there and also the RP medium 300 and big 3000 RP so I don't know,I had a lot of time without winning anything though and I religiously click my spins daily I have about 8-9 of them and I don't have patience to collect them so I hit the spin button and it works.
For me it has always worked maybe because I use the spin all rather than clicking each spin individually which is just a loss of time as I never have seen here someone winning the Rolex or Iphone pro.
Even I had recently won around 3k RP and 300 RP and sats. I guess freebitco.in is being generous these days.
Just like you, even I don't have the patience and spin the wheel every week.
It all comes down to luck. It has been a while since I have won one of the bigger prizes of the wheel but it can quickly change. I had a good period some months ago where I won 2 times 3000 RP and satoshi in 3 days time.