Welcome Ken. Your plan of doing some bareboat
charters before buying
your first cat is a great idea (although I would use it to develop likes and dislikes, rather than limiting your selection to the types of boats currently in charter). There are various threads here which should also be of assistance to you in deciding what particular cat/s would best suit your intended use.
As to referring to cats as 'floating condos', understand that most cat owners take that as a perjorative term. And while some
may deserve that title, the vast majority of cruising cats (and all of those suited for blue water sailing) are far better boats than that.