Buy once cry once. A 25-watt, 8-inch combo would be good for playing while you're in the bathroom. With the 50-watt, 12-inch, you can move into the living room. Don't expect to play "pretty loud" with a 50-watt amp.
Bottom line, neither combo is suitable for gigging. Either way, you probably will be buying another amp in 6 months if your bass playing gets to the point where you want to get into a band.
+1
Either way, your best deal is NOT Orange.

