I'd get it. The A1 series won't be readily available for some time and will cost about $200 more than the M40 you saw. Realize that the Steyr M series is currently out of production and is essentially and "orphan" at this time. I beleive this situation will improve. I bought my M when it was a true orphan in 2001 with no parts support, warranty support and no US support at all. It has given me over 85,000 rounds of reliable service.
Regarding the Steyr 40 over the Glock, I won't rehash the entire issue of unsupported chambers, but will say the Steyr is much safer in 40 than the Glock. The reason the trigger is better than the Glock is all the suport for the trigger system is steel rather than polymer, which eliminates frame flex. Do your research, understand the current limitations, then buy the Steyr.
Regarding the Steyr 40 over the Glock, I won't rehash the entire issue of unsupported chambers, but will say the Steyr is much safer in 40 than the Glock. The reason the trigger is better than the Glock is all the suport for the trigger system is steel rather than polymer, which eliminates frame flex. Do your research, understand the current limitations, then buy the Steyr.