Well to me I find speed demons do get boring quite fast. Once I get it going fast I usually end up ok now what do I do to it.

As for ashing if doing it alone I find it can be mind numbingly boring. I probably would have way more run time on my RC's if there was a track located nearby(talking within a 30-40 min drive, the tracks I know of close to me are all like 2 hours away), and would love one open during the day.

Scalers are nice, but are not made for high speed, and things like the SCX10 IMO do best with a 35t or so brushed motor. One nice thing about scalers though is due to their slower speeds they can run in places most other RC's would clear in a split second. THey can also usually climb up, and over things that vehicles like buggies would get stuck on.