These days there is very little AM on 2m whereas at one time it was the only mode! The RSGB seems to have an aversion to AM and the 2m AM centre of activity (144.55MHz) appears as a begrudging footnote in the band plans every year. They bang on about worries over adjacent channels when AM transmissions usually occupy less spectrum than FM!!
AM can be quite effective on weaker signals than FM. Often AM gear (ex-PMR) can be found very cheaply. AM has a place and many newcomers are often totally unaware of this mode.
See https://sites.google.com/site/g3xbmqrp3/vuhf/2am
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