With the part 61 licence I now have an MEA (multi-engine aeroplane) eliminating dual instructional type specific endorsements for most light twin aircraft. That is a huge saving potentially for either myself or an operator I could potentially work for. ICUS still costs money obviously but it would still have been needed even with a bare bones endorsement. I'm not going to do the math on every twin endorsement out there but a C310 goes for $665 and hour VDO. That's a good $1300 saving at least!!