I love that look. It's even better than having painted my old VIC-20 (VC-20 actually - german type) black.
The taller original shape (compared to the C-64c) leaves more room for internal hardware applications.
I had some EEPROMs and extra memory in my VIC-20 which could be switched to appear as 6.5kb, or 16Mb enhanced version, even with RAM in the cartridge area, which allowed for loading cartridge images, and switching read access off afterwards.
It also had FORTH and an enhanced BASIC (ExBASIC?) in EEPROM.
Unfortunately I sold my ordinary C64 a long time ago, and stupidly :boohoo: trashed my two VIC 20's because they were taking up too much storage space and I was not using them.
Thank god for emulators... :-D