Summary: a dedicated indoor bike immensely reduces the friction of getting a ride in.
Not that it's going to make (b) any better, but do you have purpose-made tyres on it? I've never tried with my road one, I heard it was loud and wore down extremely fast if you did so, so I just bought a smooth (and I think harder?) one designed for use on a trainer off the bat.
Could just be marketing and I fell for it, but seemed reasonable.
Re (b), and especially if you changed tyre, I suppose if you wanted to do that regularly you'd soon get a second quick-release rear wheel, so you didn't have to faff about switching skewers (and tyres!) - or better a 'direct drive' trainer (instead of running the bicycle wheel against another wheel, it comes off and you put the chain directly around a sprocket attached to the trainer).
> or better a 'direct drive' trainer (instead of running the bicycle wheel against another wheel, it comes off and you put the chain directly around a sprocket attached to the trainer).
These days you can buy $200 hd tvs and a mini desktop to run zwift, which is much nicer than using on a mobile device.
About your point e, I exercise close to a table. I put a bottle of water on there, with the phone (also for the app of the cardio) and the tablet to watch something while I pedal.
My bike is on a trainer, and I see the following down-sides:
a) My bike on a trainer is really loud. Can't do it early; can't do it when the baby is sleeping, etc.
b) It's a moderate pain in the ass to hook and unhook. Not a huge pain in the ass, but I certainly didn't do it any time of the year it was feasible for me to bike to work.
c) It's dirty. I mean, the bike. I dislike washing the tires so I can bring it indoors even a couple of times a year, never mind if it's coming in and out constantly. And never mind the fact that even washed, my wife sure as hell isn't letting me bring that into a corner of the bedroom.
d) My bike has exposed chains and gearing that, if I'm not mistaken, the Peloton and similar bikes do not. I've got a toddler.
e) Indoor exercise bikes are usually reasonably set up to let you have somewhere to put your phone, or ipad, or kindle, etc. Bikes on a trainer do not. When I'm working out indoors, that makes a big difference for me.
This hasn't been enough to convince me to buy a Peloton, but I can certainly see why someone with more disposable income (or square footage) would.