Well, we bought the Vega spin bike a few months ago for exactly that reason, tygab... with 5 of us wanting to use an indoor trainer it was just a nightmare with all the swapping on a trainer.

The spin bike gets used often, is quiet and because I can really practice my spinning on it... my average cadence on the road has lifted because of the specific spinning workouts I can do on the spin bike.

Its also fabulous after a tough ride when you just want to unwind your legs... my partner often uses it on Sunday mornings as he leaves the house at 7am for a bunch training ride that can go over 150kms, so he warms up for 15 mins or so, so that when he begins to warm up on the road his muscles are warmed up for warming up.