One of the points of RVM is to allow different versions of Ruby to be installed side-by-side easily...
Also, large packages like Ruby often have a boat-load of customizations and patches applied to them that may not apply cleanly to subsequent releases of that software. Modifying a debian package to build a new version is significantly more nightmarish than the RVM install process.
Also, large packages like Ruby often have a boat-load of customizations and patches applied to them that may not apply cleanly to subsequent releases of that software. Modifying a debian package to build a new version is significantly more nightmarish than the RVM install process.