should I become familiar with glass?

Hello again. I met with my flight instructor today just to get some information. Now it's time to schedule a flight. The ideal plane for me would be the 09 DA40 with the G1000, but it is $35 more per hour more than either the 03 DA40 or 07 172. Therefore, I am flying the two latter planes and deciding which will be better for me. There are both the same price per hour.

2003 Diamond DA40 with: IFR/VFR Garmin 530W WAAS-certified GPS/NAV/COMGarmin 430 GPS/NAV/COMBendix/King KCS 55A Slaved HSIBendix/King KAP 140 Dual-Axis AutopilotGarmin GTX 327 Digital TransponderGarmin GMA 340 Audio PanelXM Weather Datalink (AKA: NOT GLASS)

2007 Cessna 172 with: IFR/VFR
Garmin 1000 Integrated Avionics System
Bendix King KAP 140 Dual-Axis Autopilot
XM Weather Datalink (AKA: Glass)

The reason for the choice here is the famous high vs. low wing debate. Also, the diamond tops out 10 knots faster. Any suggestions or opinions as to which I should go with? Again, I will be flying both to decide eventually. Is glass going to be more prevalent down the road and more expensive to transition then, rather than start with it now?