i think if i had a choice, i don't think i would overwinter(inside) if i lived in an area that had idea growing conditions or unless i had a love interest in 1 particular plant.
some of my overwintered plants have produced a few pods so far(habanero, caribbean red, hot lemon) and now fatalii, gold bullets are starting to bloom. but it has been a long winter of caring for potted plants. but as i sit here watching some of the southern state boys cutting into ripe pods it makes me wonder if it is all worth the effort. definitely on pod varieties that would normally be impossible to find like locally, like bhuts,scorpian,fatalii etc. but orange habs are now available almost year round and scotch bonnets are available in the summer at select supermarkets. i am finding more powders available like aji amarillo, peri-peri.
add in garden centres now carrying more hot varieties, why bother even growing some varieties - just go out and buy a few plants. today on a nursery visit i found caribbean red, red habanero, orange habs, hotties(habanero) and of course several annuum types(ceyenne,serrano, various jalapeno etc) and all with flowers.
the plants that i allow to grow, sit in a south basement with window and have a constant temperature of approximately 70F. the hibernated plants are in another room and only get early morning sunlight(assuming it is a sunny day) but light is available, that room temperature would be about 65F