A nationwide 10 round mag standard with no grandfathering would likely knock me off my braces of G34s and G35s to either a 1911 or an M&P .45 with some Apex FSS goodness.
Short of that, a platform change is 2k min proposition by the time I buy 2 guns ( practice and carry), 4 holsters, ( AIWB, IWB ,OWB (concealed) and OWB (training)), 4 single mag pouches (2 carry, 2 training), 12 mag (6 carry, 6 training), proper night sights x 2.
I do confess I was recently speaking with johncorey re flirting with some all steel CZ 75 because I suspect that could be configured to be reliable, accurate, cocked/locked and very soft shooting.