Monorail Advice

Hi Gang,

I wanted to quiz the knowledge base here in regards to a monorail. The next step in our train evolution is a monorail and given that I'm looking at over $100 for one, i thought I would do at least a little homework.

I wanted to get everyone's opinion, thoughts, experiences, do this & don't do that... etc. 

Here is what I was thinking,  of the Tomy ones, I think I prefer the one where the monorail is on top of the track rather than the ones where its on the underside.  It just seems cooler and more stable and more 'kid friendly'

I am also curious is anyone has used or familiar with any of these below (sorry having trouble uploading pics now)
https://www.ebay.com/itm/Disney-Parks-Di...1a566215c0
But I was thinking that if we add a monorail then why does it need to be "tomy"  just cause im in love with tomy?  you cant really use any of the other tomy parts and track with the monorail.

Ill add pics of what im considering when I can.  Also, if anyone has a monorail for sale, let me know.

KM