This!
Imagine a world where we have C64, SX64, GS64, C128, C128D, C128DCR, A500, A1000, A1500, A2000, Plus4, C16, PC1, PC10, PC20, PC30 etc.
And then you tack on the C64+, with more bus slots.
Which would fit in where between a C64, a C128, and an A500 in price point and capability?
By that...