What do you like in an inexpensive tube integrated

Not all at all odd about 2nd system.Many'piles spend more time with 2nd system(my self included} because thats where reality,not our fantasies,tends to reign.

Or, as in my case, you listen more with the second system because it's in a room which is always available, like a bedroom, whereas the main system is in a shared room like the living room.

I've owned 2 SLI- 80 amps in the past 10 years- never had an issue.